Home / 11,691.64-16,134.24-6,386.44

Finding the Fourth Proportional to 11,691.64, 16,134.24 and 6,386.44

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Solution

The fourth proportional to 11,691.64, 16,134.24 and 6,386.44 is: 8,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.64 : 16,134.24 = 6,386.44 : x
  2. Step 2: Convert to fraction form
    11,691.64/16,134.24 = 6,386.44/x
  3. Step 3: Cross multiply
    11,691.64x = 16,134.24 × 6,386.44
  4. Step 4: Simplify right side
    11,691.64x = 103,040,355.71
  5. Step 5: Solve for x
    x = 103,040,355.71/11,691.64
  6. Step 6: Final answer
    x = 8,813.17

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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.