Home / 13,644.52-20,451.42-6,723.88

Finding the Fourth Proportional to 13,644.52, 20,451.42 and 6,723.88

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Solution

The fourth proportional to 13,644.52, 20,451.42 and 6,723.88 is: 10,078.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.52 : 20,451.42 = 6,723.88 : x
  2. Step 2: Convert to fraction form
    13,644.52/20,451.42 = 6,723.88/x
  3. Step 3: Cross multiply
    13,644.52x = 20,451.42 × 6,723.88
  4. Step 4: Simplify right side
    13,644.52x = 137,512,893.91
  5. Step 5: Solve for x
    x = 137,512,893.91/13,644.52
  6. Step 6: Final answer
    x = 10,078.25

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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.