Home / 13,475.52-20,191.44-8,789.92

Finding the Fourth Proportional to 13,475.52, 20,191.44 and 8,789.92

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Solution

The fourth proportional to 13,475.52, 20,191.44 and 8,789.92 is: 13,170.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.52 : 20,191.44 = 8,789.92 : x
  2. Step 2: Convert to fraction form
    13,475.52/20,191.44 = 8,789.92/x
  3. Step 3: Cross multiply
    13,475.52x = 20,191.44 × 8,789.92
  4. Step 4: Simplify right side
    13,475.52x = 177,481,142.28
  5. Step 5: Solve for x
    x = 177,481,142.28/13,475.52
  6. Step 6: Final answer
    x = 13,170.63

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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.