Home / 13,847.38-20,781.91-9,660.15

Finding the Fourth Proportional to 13,847.38, 20,781.91 and 9,660.15

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Solution

The fourth proportional to 13,847.38, 20,781.91 and 9,660.15 is: 14,497.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.38 : 20,781.91 = 9,660.15 : x
  2. Step 2: Convert to fraction form
    13,847.38/20,781.91 = 9,660.15/x
  3. Step 3: Cross multiply
    13,847.38x = 20,781.91 × 9,660.15
  4. Step 4: Simplify right side
    13,847.38x = 200,756,367.89
  5. Step 5: Solve for x
    x = 200,756,367.89/13,847.38
  6. Step 6: Final answer
    x = 14,497.79

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1.5x scale

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.