Finding the Fourth Proportional to 18,126.70, 27,186.99 and 4,976.02
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Solution
The fourth proportional to 18,126.70, 27,186.99 and 4,976.02 is: 7,463.19
Step by Step Solution
- Step 1: Write the proportion equation
18,126.70 : 27,186.99 = 4,976.02 : x - Step 2: Convert to fraction form
18,126.70/27,186.99 = 4,976.02/x - Step 3: Cross multiply
18,126.70x = 27,186.99 × 4,976.02 - Step 4: Simplify right side
18,126.70x = 135,283,005.98 - Step 5: Solve for x
x = 135,283,005.98/18,126.70 - Step 6: Final answer
x = 7,463.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.