Finding the Fourth Proportional to 18,163.30, 27,201.88 and 11,569.49
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Solution
The fourth proportional to 18,163.30, 27,201.88 and 11,569.49 is: 17,326.81
Step by Step Solution
- Step 1: Write the proportion equation
18,163.30 : 27,201.88 = 11,569.49 : x - Step 2: Convert to fraction form
18,163.30/27,201.88 = 11,569.49/x - Step 3: Cross multiply
18,163.30x = 27,201.88 × 11,569.49 - Step 4: Simplify right side
18,163.30x = 314,711,878.64 - Step 5: Solve for x
x = 314,711,878.64/18,163.30 - Step 6: Final answer
x = 17,326.81
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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.