[" 15.The first three terms of a proportion are "3,5" and "21" respectively.Find the fourth "],[" term."]

The first three terms of a proportion are 3,5 and 21 respectively.Find its fourth term.

The first three terms of a proportion are 3,5 and 21 respectively. Find its fourth term.

The first three terms of a porportion are 3,5 and 21 respectively. Find its fourth term.

First, second and third terms of a proportion are 9,27 and 3 respectively. Find the fourth term.

The first three terms of a proportion are 12. 21 and 8 respectively. The 4th term is

If the first three terms of a proportion are 3,5 and 21 respectively, then its fourth term is (a)21 (b) 35 (c)15 (d) None of these

If the first three terms of a proportion are 3,5 and 21 respectively, then its fourth term is (a)21 (b) 35 (c)15 (d) None of these

The first, second and fourth terms of a proportion are 5,15 and 90 respectively. Find the third term.

The first, second and fourth terms of a proportion are 6, 18 and 25 respectively. Find the third term.

The first, third and fourth terms of a proportion are 12, 8 and 14 respectively. Find the second term.