Home / 11,691.32-17,542.08-6,143.36

Finding the Fourth Proportional to 11,691.32, 17,542.08 and 6,143.36

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Solution

The fourth proportional to 11,691.32, 17,542.08 and 6,143.36 is: 9,217.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.32 : 17,542.08 = 6,143.36 : x
  2. Step 2: Convert to fraction form
    11,691.32/17,542.08 = 6,143.36/x
  3. Step 3: Cross multiply
    11,691.32x = 17,542.08 × 6,143.36
  4. Step 4: Simplify right side
    11,691.32x = 107,767,312.59
  5. Step 5: Solve for x
    x = 107,767,312.59/11,691.32
  6. Step 6: Final answer
    x = 9,217.72

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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.