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Finding the Fourth Proportional to 18,272.07, 27,404 and 8,401.86

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Solution

The fourth proportional to 18,272.07, 27,404 and 8,401.86 is: 12,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.07 : 27,404 = 8,401.86 : x
  2. Step 2: Convert to fraction form
    18,272.07/27,404 = 8,401.86/x
  3. Step 3: Cross multiply
    18,272.07x = 27,404 × 8,401.86
  4. Step 4: Simplify right side
    18,272.07x = 230,244,571.44
  5. Step 5: Solve for x
    x = 230,244,571.44/18,272.07
  6. Step 6: Final answer
    x = 12,600.90

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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.