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Finding the Fourth Proportional to 8,951.42, 13,425.11 and 3,402.79

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Solution

The fourth proportional to 8,951.42, 13,425.11 and 3,402.79 is: 5,103.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.42 : 13,425.11 = 3,402.79 : x
  2. Step 2: Convert to fraction form
    8,951.42/13,425.11 = 3,402.79/x
  3. Step 3: Cross multiply
    8,951.42x = 13,425.11 × 3,402.79
  4. Step 4: Simplify right side
    8,951.42x = 45,682,745.92
  5. Step 5: Solve for x
    x = 45,682,745.92/8,951.42
  6. Step 6: Final answer
    x = 5,103.41

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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.