Home / 13,614.25-20,422.64-5,294.89

Finding the Fourth Proportional to 13,614.25, 20,422.64 and 5,294.89

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Solution

The fourth proportional to 13,614.25, 20,422.64 and 5,294.89 is: 7,942.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.25 : 20,422.64 = 5,294.89 : x
  2. Step 2: Convert to fraction form
    13,614.25/20,422.64 = 5,294.89/x
  3. Step 3: Cross multiply
    13,614.25x = 20,422.64 × 5,294.89
  4. Step 4: Simplify right side
    13,614.25x = 108,135,713.62
  5. Step 5: Solve for x
    x = 108,135,713.62/13,614.25
  6. Step 6: Final answer
    x = 7,942.83

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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.