if 3, x, 6, 12 ar in proportion , then x =

if 3, x, 6, 18 are in proportion , then x =

If 1, 2, 3, and x are in proportion, then x = 1.

If x + 1, x-3,x+6 and x are in proportion, then x= _____

If 12, x, 8 and 14 are in proportion, then what is the mean proportional between (x - 12) and (x + 4)

If 4, x, 12, 15 are in proportion. Find the value of x.

If 1, 2, 3 and x\ are in proportion, then x = .................

If 2.8, 7, 12 and x are in proportion then x=

Find x if 4, 6, x, 18 are in proportion 3. The first, third and fourth terms of a proportion are 12.8 and 14 respectively. Find the second term.

The numbers 3, 6, 8, 12 are in proportion. Is it true r false?