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Finding the Fourth Proportional to 12,882.38, 17,644.49 and 12,125.84

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Solution

The fourth proportional to 12,882.38, 17,644.49 and 12,125.84 is: 16,608.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.38 : 17,644.49 = 12,125.84 : x
  2. Step 2: Convert to fraction form
    12,882.38/17,644.49 = 12,125.84/x
  3. Step 3: Cross multiply
    12,882.38x = 17,644.49 × 12,125.84
  4. Step 4: Simplify right side
    12,882.38x = 213,954,262.62
  5. Step 5: Solve for x
    x = 213,954,262.62/12,882.38
  6. Step 6: Final answer
    x = 16,608.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.