Home / 13,414.75-20,131.27-8,977.43

Finding the Fourth Proportional to 13,414.75, 20,131.27 and 8,977.43

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Solution

The fourth proportional to 13,414.75, 20,131.27 and 8,977.43 is: 13,472.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.75 : 20,131.27 = 8,977.43 : x
  2. Step 2: Convert to fraction form
    13,414.75/20,131.27 = 8,977.43/x
  3. Step 3: Cross multiply
    13,414.75x = 20,131.27 × 8,977.43
  4. Step 4: Simplify right side
    13,414.75x = 180,727,095.12
  5. Step 5: Solve for x
    x = 180,727,095.12/13,414.75
  6. Step 6: Final answer
    x = 13,472.27

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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.