Home / 8,011.20-12,016.82-2,167.80

Finding the Fourth Proportional to 8,011.20, 12,016.82 and 2,167.80

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Solution

The fourth proportional to 8,011.20, 12,016.82 and 2,167.80 is: 3,251.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.20 : 12,016.82 = 2,167.80 : x
  2. Step 2: Convert to fraction form
    8,011.20/12,016.82 = 2,167.80/x
  3. Step 3: Cross multiply
    8,011.20x = 12,016.82 × 2,167.80
  4. Step 4: Simplify right side
    8,011.20x = 26,050,062.40
  5. Step 5: Solve for x
    x = 26,050,062.40/8,011.20
  6. Step 6: Final answer
    x = 3,251.71

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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.