Home / 11,167.92-15,412.44-6,691.86

Finding the Fourth Proportional to 11,167.92, 15,412.44 and 6,691.86

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Solution

The fourth proportional to 11,167.92, 15,412.44 and 6,691.86 is: 9,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.92 : 15,412.44 = 6,691.86 : x
  2. Step 2: Convert to fraction form
    11,167.92/15,412.44 = 6,691.86/x
  3. Step 3: Cross multiply
    11,167.92x = 15,412.44 × 6,691.86
  4. Step 4: Simplify right side
    11,167.92x = 103,137,890.74
  5. Step 5: Solve for x
    x = 103,137,890.74/11,167.92
  6. Step 6: Final answer
    x = 9,235.19

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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.