Home / 8,979.28-13,469.88-3,134.96

Finding the Fourth Proportional to 8,979.28, 13,469.88 and 3,134.96

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Solution

The fourth proportional to 8,979.28, 13,469.88 and 3,134.96 is: 4,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.28 : 13,469.88 = 3,134.96 : x
  2. Step 2: Convert to fraction form
    8,979.28/13,469.88 = 3,134.96/x
  3. Step 3: Cross multiply
    8,979.28x = 13,469.88 × 3,134.96
  4. Step 4: Simplify right side
    8,979.28x = 42,227,535.00
  5. Step 5: Solve for x
    x = 42,227,535.00/8,979.28
  6. Step 6: Final answer
    x = 4,702.78

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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.