Home / 11,691.62-16,134.30-6,386.66

Finding the Fourth Proportional to 11,691.62, 16,134.30 and 6,386.66

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Solution

The fourth proportional to 11,691.62, 16,134.30 and 6,386.66 is: 8,813.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.62 : 16,134.30 = 6,386.66 : x
  2. Step 2: Convert to fraction form
    11,691.62/16,134.30 = 6,386.66/x
  3. Step 3: Cross multiply
    11,691.62x = 16,134.30 × 6,386.66
  4. Step 4: Simplify right side
    11,691.62x = 103,044,288.44
  5. Step 5: Solve for x
    x = 103,044,288.44/11,691.62
  6. Step 6: Final answer
    x = 8,813.52

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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.