Home / 13,932.14-20,901.85-7,691.09

Finding the Fourth Proportional to 13,932.14, 20,901.85 and 7,691.09

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Solution

The fourth proportional to 13,932.14, 20,901.85 and 7,691.09 is: 11,538.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.14 : 20,901.85 = 7,691.09 : x
  2. Step 2: Convert to fraction form
    13,932.14/20,901.85 = 7,691.09/x
  3. Step 3: Cross multiply
    13,932.14x = 20,901.85 × 7,691.09
  4. Step 4: Simplify right side
    13,932.14x = 160,757,885.78
  5. Step 5: Solve for x
    x = 160,757,885.78/13,932.14
  6. Step 6: Final answer
    x = 11,538.64

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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.