Finding the Fourth Proportional to 18,645.71, 27,961.91 and 6,163.43
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Solution
The fourth proportional to 18,645.71, 27,961.91 and 6,163.43 is: 9,242.94
Step by Step Solution
- Step 1: Write the proportion equation
18,645.71 : 27,961.91 = 6,163.43 : x - Step 2: Convert to fraction form
18,645.71/27,961.91 = 6,163.43/x - Step 3: Cross multiply
18,645.71x = 27,961.91 × 6,163.43 - Step 4: Simplify right side
18,645.71x = 172,341,244.13 - Step 5: Solve for x
x = 172,341,244.13/18,645.71 - Step 6: Final answer
x = 9,242.94
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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.