Home / 13,422.38-20,133.56-3,562.43

Finding the Fourth Proportional to 13,422.38, 20,133.56 and 3,562.43

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Solution

The fourth proportional to 13,422.38, 20,133.56 and 3,562.43 is: 5,343.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.38 : 20,133.56 = 3,562.43 : x
  2. Step 2: Convert to fraction form
    13,422.38/20,133.56 = 3,562.43/x
  3. Step 3: Cross multiply
    13,422.38x = 20,133.56 × 3,562.43
  4. Step 4: Simplify right side
    13,422.38x = 71,724,279.67
  5. Step 5: Solve for x
    x = 71,724,279.67/13,422.38
  6. Step 6: Final answer
    x = 5,343.64

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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.