All 1/4 strings I know have a little lower tension then the coresponding 3/4 strings, if both are tuned to specified pitch at specified string length. But the tension is higher as the same string for 3/4 when used on 1/4 instrument. With strings having metal strand core,you usally can use them shortend on 1/4 bass. But a 3/4 medium Spirocore will have lower tension then the 1/4 medium Spirocore when used on a 1/4 bass (that way you can get Spirocore downtuned solo feel on the small bass). Any 3/4 string having much lower tension then Spirocore 3/4 mediums will not be of much use on 1/4 bass.
You can let some manufacturer to make guts for 1/4 bass, but they will be very thick or tension very low ==> both makes the string almost unusable. There are a few strings with nylon core for 1/4 like Pirastro Obligato, but I don't have experience with them.
Strings for 1/4 bass are best on the bright side, that makes playing in tune much easier. Dark or thick strings tend to have a pitch that is hard to hear.
An adult with big hands can play cello fingering on 1/4 bass, but I never found a string set I was satisfied with in quint tuning. A quint set for 1/4 does not exists, low B or C strings for 1/4 do not exist, not many solo tuning strings in 1/4 to get the cello tuning working. The Spirocore 3/4 medium quint set is useable, but has very low tension when used on 1/4 (not very loud). There is no Spirocore 3/4 strong quint set, which is regretable.