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Finding the Fourth Proportional to 15,067.57, 20,793.39 and 8,353.30

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Solution

The fourth proportional to 15,067.57, 20,793.39 and 8,353.30 is: 11,527.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.57 : 20,793.39 = 8,353.30 : x
  2. Step 2: Convert to fraction form
    15,067.57/20,793.39 = 8,353.30/x
  3. Step 3: Cross multiply
    15,067.57x = 20,793.39 × 8,353.30
  4. Step 4: Simplify right side
    15,067.57x = 173,693,320.72
  5. Step 5: Solve for x
    x = 173,693,320.72/15,067.57
  6. Step 6: Final answer
    x = 11,527.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.