Home / 8,481.27-12,722.13-7,240.86

Finding the Fourth Proportional to 8,481.27, 12,722.13 and 7,240.86

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Solution

The fourth proportional to 8,481.27, 12,722.13 and 7,240.86 is: 10,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.27 : 12,722.13 = 7,240.86 : x
  2. Step 2: Convert to fraction form
    8,481.27/12,722.13 = 7,240.86/x
  3. Step 3: Cross multiply
    8,481.27x = 12,722.13 × 7,240.86
  4. Step 4: Simplify right side
    8,481.27x = 92,119,162.23
  5. Step 5: Solve for x
    x = 92,119,162.23/8,481.27
  6. Step 6: Final answer
    x = 10,861.48

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Half scale
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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.