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Finding the Fourth Proportional to 16,658.20, 25,016.10 and 8,882.20

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Solution

The fourth proportional to 16,658.20, 25,016.10 and 8,882.20 is: 13,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.20 : 25,016.10 = 8,882.20 : x
  2. Step 2: Convert to fraction form
    16,658.20/25,016.10 = 8,882.20/x
  3. Step 3: Cross multiply
    16,658.20x = 25,016.10 × 8,882.20
  4. Step 4: Simplify right side
    16,658.20x = 222,198,003.42
  5. Step 5: Solve for x
    x = 222,198,003.42/16,658.20
  6. Step 6: Final answer
    x = 13,338.66

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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.