Home / 13,939.11-20,909.14-5,049.97

Finding the Fourth Proportional to 13,939.11, 20,909.14 and 5,049.97

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Solution

The fourth proportional to 13,939.11, 20,909.14 and 5,049.97 is: 7,575.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.11 : 20,909.14 = 5,049.97 : x
  2. Step 2: Convert to fraction form
    13,939.11/20,909.14 = 5,049.97/x
  3. Step 3: Cross multiply
    13,939.11x = 20,909.14 × 5,049.97
  4. Step 4: Simplify right side
    13,939.11x = 105,590,464.83
  5. Step 5: Solve for x
    x = 105,590,464.83/13,939.11
  6. Step 6: Final answer
    x = 7,575.12

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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.