I don't understand what you are trying to do.....enlarge the basic block to make it easier or enlarge to make a larger quilt. If I were doing it....I would.....
Draw on graft paper the block the size I needed it to be.
Measure each component to determine the size of each piece or strip to cut.
But remember it won't be just doubling or whatever increase you need because you might end up with very odd sizes.
However. It would be useful to know the reason you want to resize. There may be an alternative.