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Finding the Fourth Proportional to 8,635.41, 12,951.90 and 2,792.07

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Solution

The fourth proportional to 8,635.41, 12,951.90 and 2,792.07 is: 4,187.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.41 : 12,951.90 = 2,792.07 : x
  2. Step 2: Convert to fraction form
    8,635.41/12,951.90 = 2,792.07/x
  3. Step 3: Cross multiply
    8,635.41x = 12,951.90 × 2,792.07
  4. Step 4: Simplify right side
    8,635.41x = 36,162,611.43
  5. Step 5: Solve for x
    x = 36,162,611.43/8,635.41
  6. Step 6: Final answer
    x = 4,187.71

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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.