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Finding the Fourth Proportional to 8,635.59, 12,954.24 and 3,440.25

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Solution

The fourth proportional to 8,635.59, 12,954.24 and 3,440.25 is: 5,160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.59 : 12,954.24 = 3,440.25 : x
  2. Step 2: Convert to fraction form
    8,635.59/12,954.24 = 3,440.25/x
  3. Step 3: Cross multiply
    8,635.59x = 12,954.24 × 3,440.25
  4. Step 4: Simplify right side
    8,635.59x = 44,565,824.16
  5. Step 5: Solve for x
    x = 44,565,824.16/8,635.59
  6. Step 6: Final answer
    x = 5,160.72

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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.