From different proportions with 7, 8, 14, 16.

From different proportions with 9, 11, 27 and 33.

From different proportion with 5, 15, 10 and 30.

Let's prepare table as in from different proportion with 5,15, 10 and 30

Do ourselves - Let's find if the following numbers are in proportion or not. If they are in proportion, let's write all the possible proportions with them. (a) 3, 14, 4, 20

Find whether the sets of numbers are in continued proportion, and write the proportionality: 7, 14, 28

Let's verify which of the following numbers are in proportion. (ii) 12, 30, 14, 70

"Two different elements may combine together in a definite proportion by mass to form two different isomeric compounds. Again two different elements may combine together in different proportions by mass to produce two different compounds". Comment on this.

3. (f)Let's find they are in proportion or not: 8/3, 8, 5/3, 8

Find if the pair of ratios given below are equal and also find if four members are in proportion 9:7 and 18:14 .

Third proportional of 8 and 12 is