Finding the Fourth Proportional to 11.49, 15.86 and 8.03
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Solution
The fourth proportional to 11.49, 15.86 and 8.03 is: 11.07
Step by Step Solution
- Step 1: Write the proportion equation
11.49 : 15.86 = 8.03 : x - Step 2: Convert to fraction form
11.49/15.86 = 8.03/x - Step 3: Cross multiply
11.49x = 15.86 × 8.03 - Step 4: Simplify right side
11.49x = 127.24 - Step 5: Solve for x
x = 127.24/11.49 - Step 6: Final answer
x = 11.07
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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.