Finding the Fourth Proportional to 18.05, 24.91 and 11.59
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Solution
The fourth proportional to 18.05, 24.91 and 11.59 is: 15.99
Step by Step Solution
- Step 1: Write the proportion equation
18.05 : 24.91 = 11.59 : x - Step 2: Convert to fraction form
18.05/24.91 = 11.59/x - Step 3: Cross multiply
18.05x = 24.91 × 11.59 - Step 4: Simplify right side
18.05x = 288.62 - Step 5: Solve for x
x = 288.62/18.05 - Step 6: Final answer
x = 15.99
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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.