Home / 8,992.20-13,488.30-5,711.70

Finding the Fourth Proportional to 8,992.20, 13,488.30 and 5,711.70

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Solution

The fourth proportional to 8,992.20, 13,488.30 and 5,711.70 is: 8,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.20 : 13,488.30 = 5,711.70 : x
  2. Step 2: Convert to fraction form
    8,992.20/13,488.30 = 5,711.70/x
  3. Step 3: Cross multiply
    8,992.20x = 13,488.30 × 5,711.70
  4. Step 4: Simplify right side
    8,992.20x = 77,041,123.11
  5. Step 5: Solve for x
    x = 77,041,123.11/8,992.20
  6. Step 6: Final answer
    x = 8,567.55

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Double scale
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Similar ratio
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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.