Home / 16,488.11-22,753.60-9,680.80

Finding the Fourth Proportional to 16,488.11, 22,753.60 and 9,680.80

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Solution

The fourth proportional to 16,488.11, 22,753.60 and 9,680.80 is: 13,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,488.11 : 22,753.60 = 9,680.80 : x
  2. Step 2: Convert to fraction form
    16,488.11/22,753.60 = 9,680.80/x
  3. Step 3: Cross multiply
    16,488.11x = 22,753.60 × 9,680.80
  4. Step 4: Simplify right side
    16,488.11x = 220,272,902.85
  5. Step 5: Solve for x
    x = 220,272,902.85/16,488.11
  6. Step 6: Final answer
    x = 13,359.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.