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Finding the Fourth Proportional to 8,508.39, 12,765.02 and 6,170.73

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Solution

The fourth proportional to 8,508.39, 12,765.02 and 6,170.73 is: 9,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.39 : 12,765.02 = 6,170.73 : x
  2. Step 2: Convert to fraction form
    8,508.39/12,765.02 = 6,170.73/x
  3. Step 3: Cross multiply
    8,508.39x = 12,765.02 × 6,170.73
  4. Step 4: Simplify right side
    8,508.39x = 78,769,461.01
  5. Step 5: Solve for x
    x = 78,769,461.01/8,508.39
  6. Step 6: Final answer
    x = 9,257.86

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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.