Home / 8,207.39-11,310.39-5,965.72

Finding the Fourth Proportional to 8,207.39, 11,310.39 and 5,965.72

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Solution

The fourth proportional to 8,207.39, 11,310.39 and 5,965.72 is: 8,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.39 : 11,310.39 = 5,965.72 : x
  2. Step 2: Convert to fraction form
    8,207.39/11,310.39 = 5,965.72/x
  3. Step 3: Cross multiply
    8,207.39x = 11,310.39 × 5,965.72
  4. Step 4: Simplify right side
    8,207.39x = 67,474,591.55
  5. Step 5: Solve for x
    x = 67,474,591.55/8,207.39
  6. Step 6: Final answer
    x = 8,221.20

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.