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Finding the Fourth Proportional to 8,522.73, 12,785.93 and 4,250.78

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Solution

The fourth proportional to 8,522.73, 12,785.93 and 4,250.78 is: 6,377.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.73 : 12,785.93 = 4,250.78 : x
  2. Step 2: Convert to fraction form
    8,522.73/12,785.93 = 4,250.78/x
  3. Step 3: Cross multiply
    8,522.73x = 12,785.93 × 4,250.78
  4. Step 4: Simplify right side
    8,522.73x = 54,350,154.27
  5. Step 5: Solve for x
    x = 54,350,154.27/8,522.73
  6. Step 6: Final answer
    x = 6,377.08

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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.