Home / 11,722.28-16,174.17-6,939.85

Finding the Fourth Proportional to 11,722.28, 16,174.17 and 6,939.85

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Solution

The fourth proportional to 11,722.28, 16,174.17 and 6,939.85 is: 9,575.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.28 : 16,174.17 = 6,939.85 : x
  2. Step 2: Convert to fraction form
    11,722.28/16,174.17 = 6,939.85/x
  3. Step 3: Cross multiply
    11,722.28x = 16,174.17 × 6,939.85
  4. Step 4: Simplify right side
    11,722.28x = 112,246,339.30
  5. Step 5: Solve for x
    x = 112,246,339.30/11,722.28
  6. Step 6: Final answer
    x = 9,575.47

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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.