Question

Are the following numbers in proportion?
(a) 9, 12, 18, 24
(b) 3, 4, 8, 16
(C) 22, 33, 16, 24
(d) 63, 55, 32, 72
(e) 4, 9, 32, 72
(f) 15, 75, 45, 120
​

Answer 1

Answer. Product of mean=33×16=528. Product of extremes- products of mean =22,33,16,24 are proportion.