Home / 11,691.47-16,130.22-6,654.42

Finding the Fourth Proportional to 11,691.47, 16,130.22 and 6,654.42

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Solution

The fourth proportional to 11,691.47, 16,130.22 and 6,654.42 is: 9,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.47 : 16,130.22 = 6,654.42 : x
  2. Step 2: Convert to fraction form
    11,691.47/16,130.22 = 6,654.42/x
  3. Step 3: Cross multiply
    11,691.47x = 16,130.22 × 6,654.42
  4. Step 4: Simplify right side
    11,691.47x = 107,337,225.30
  5. Step 5: Solve for x
    x = 107,337,225.30/11,691.47
  6. Step 6: Final answer
    x = 9,180.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.