Home / 13,732.92-18,951.30-8,067.78

Finding the Fourth Proportional to 13,732.92, 18,951.30 and 8,067.78

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Solution

The fourth proportional to 13,732.92, 18,951.30 and 8,067.78 is: 11,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.92 : 18,951.30 = 8,067.78 : x
  2. Step 2: Convert to fraction form
    13,732.92/18,951.30 = 8,067.78/x
  3. Step 3: Cross multiply
    13,732.92x = 18,951.30 × 8,067.78
  4. Step 4: Simplify right side
    13,732.92x = 152,894,919.11
  5. Step 5: Solve for x
    x = 152,894,919.11/13,732.92
  6. Step 6: Final answer
    x = 11,133.46

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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.