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Finding the Fourth Proportional to 15,067.88, 20,793.81 and 8,353.64

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Solution

The fourth proportional to 15,067.88, 20,793.81 and 8,353.64 is: 11,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.88 : 20,793.81 = 8,353.64 : x
  2. Step 2: Convert to fraction form
    15,067.88/20,793.81 = 8,353.64/x
  3. Step 3: Cross multiply
    15,067.88x = 20,793.81 × 8,353.64
  4. Step 4: Simplify right side
    15,067.88x = 173,704,002.97
  5. Step 5: Solve for x
    x = 173,704,002.97/15,067.88
  6. Step 6: Final answer
    x = 11,528.10

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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.