Home / 13,454.70-20,149.92-10,662.90

Finding the Fourth Proportional to 13,454.70, 20,149.92 and 10,662.90

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Solution

The fourth proportional to 13,454.70, 20,149.92 and 10,662.90 is: 15,968.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.70 : 20,149.92 = 10,662.90 : x
  2. Step 2: Convert to fraction form
    13,454.70/20,149.92 = 10,662.90/x
  3. Step 3: Cross multiply
    13,454.70x = 20,149.92 × 10,662.90
  4. Step 4: Simplify right side
    13,454.70x = 214,856,581.97
  5. Step 5: Solve for x
    x = 214,856,581.97/13,454.70
  6. Step 6: Final answer
    x = 15,968.89

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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.