Find the fourth proportional of 1,2,3.

Find the fourth proportional of 2,3, and 6.

Find the fourth proportional of 3,12 and 4

Find the fourth proportional to 12, 18, 20.

Find the fourth proportional to 14, 28, and 21.

Find the fourth proportional to 12, 18, 20

The mean proportional between 54 and 6 is x, and the fourth proportional of 2,3,12….. Is y. What is x:y ?

What is the fourth proportional of 18,24,30.

Find: the fourth proportional to 4,9,12