Home / 13,517.12-20,251.37-8,249.38

Finding the Fourth Proportional to 13,517.12, 20,251.37 and 8,249.38

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Solution

The fourth proportional to 13,517.12, 20,251.37 and 8,249.38 is: 12,359.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.12 : 20,251.37 = 8,249.38 : x
  2. Step 2: Convert to fraction form
    13,517.12/20,251.37 = 8,249.38/x
  3. Step 3: Cross multiply
    13,517.12x = 20,251.37 × 8,249.38
  4. Step 4: Simplify right side
    13,517.12x = 167,061,292.59
  5. Step 5: Solve for x
    x = 167,061,292.59/13,517.12
  6. Step 6: Final answer
    x = 12,359.24

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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.