Finding the Fourth Proportional to 18,162.43, 27,243.86 and 5,681.95
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Solution
The fourth proportional to 18,162.43, 27,243.86 and 5,681.95 is: 8,522.99
Step by Step Solution
- Step 1: Write the proportion equation
18,162.43 : 27,243.86 = 5,681.95 : x - Step 2: Convert to fraction form
18,162.43/27,243.86 = 5,681.95/x - Step 3: Cross multiply
18,162.43x = 27,243.86 × 5,681.95 - Step 4: Simplify right side
18,162.43x = 154,798,250.33 - Step 5: Solve for x
x = 154,798,250.33/18,162.43 - Step 6: Final answer
x = 8,522.99
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1.5x scale
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.