Home / 7,397.20-11,095.80-5,331.70

Finding the Fourth Proportional to 7,397.20, 11,095.80 and 5,331.70

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Solution

The fourth proportional to 7,397.20, 11,095.80 and 5,331.70 is: 7,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.20 : 11,095.80 = 5,331.70 : x
  2. Step 2: Convert to fraction form
    7,397.20/11,095.80 = 5,331.70/x
  3. Step 3: Cross multiply
    7,397.20x = 11,095.80 × 5,331.70
  4. Step 4: Simplify right side
    7,397.20x = 59,159,476.86
  5. Step 5: Solve for x
    x = 59,159,476.86/7,397.20
  6. Step 6: Final answer
    x = 7,997.55

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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.