Should still work, although of course test first.
I don't use acrylics much, but I have thinned both water-based and alcohol based acrylics with water, and with IPA, and have successfully mixed different brands, for example, mixed Vallejo with Tamiya, and Tamiya with Revell.
I must add that these have only been for small amounts - for anything serious, I use real paint ........ enamels !!