Finding the Fourth Proportional to 11.60, 16.01 and 7.97
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Solution
The fourth proportional to 11.60, 16.01 and 7.97 is: 10.99
Step by Step Solution
- Step 1: Write the proportion equation
11.60 : 16.01 = 7.97 : x - Step 2: Convert to fraction form
11.60/16.01 = 7.97/x - Step 3: Cross multiply
11.60x = 16.01 × 7.97 - Step 4: Simplify right side
11.60x = 127.54 - Step 5: Solve for x
x = 127.54/11.60 - 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.