Finding the Fourth Proportional to 11.02, 15.22 and 7.96
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Solution
The fourth proportional to 11.02, 15.22 and 7.96 is: 10.99
Step by Step Solution
- Step 1: Write the proportion equation
11.02 : 15.22 = 7.96 : x - Step 2: Convert to fraction form
11.02/15.22 = 7.96/x - Step 3: Cross multiply
11.02x = 15.22 × 7.96 - Step 4: Simplify right side
11.02x = 121.08 - Step 5: Solve for x
x = 121.08/11.02 - Step 6: Final answer
x = 10.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.