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Finding the Fourth Proportional to 8,236.10, 12,354.15 and 7,555.70

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Solution

The fourth proportional to 8,236.10, 12,354.15 and 7,555.70 is: 11,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.10 : 12,354.15 = 7,555.70 : x
  2. Step 2: Convert to fraction form
    8,236.10/12,354.15 = 7,555.70/x
  3. Step 3: Cross multiply
    8,236.10x = 12,354.15 × 7,555.70
  4. Step 4: Simplify right side
    8,236.10x = 93,344,251.16
  5. Step 5: Solve for x
    x = 93,344,251.16/8,236.10
  6. Step 6: Final answer
    x = 11,333.55

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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.