Home / 13,747.92-20,619.29-3,887.12

Finding the Fourth Proportional to 13,747.92, 20,619.29 and 3,887.12

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Solution

The fourth proportional to 13,747.92, 20,619.29 and 3,887.12 is: 5,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.92 : 20,619.29 = 3,887.12 : x
  2. Step 2: Convert to fraction form
    13,747.92/20,619.29 = 3,887.12/x
  3. Step 3: Cross multiply
    13,747.92x = 20,619.29 × 3,887.12
  4. Step 4: Simplify right side
    13,747.92x = 80,149,654.54
  5. Step 5: Solve for x
    x = 80,149,654.54/13,747.92
  6. Step 6: Final answer
    x = 5,829.95

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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.