Home / 11,690.11-16,132.12-6,384.75

Finding the Fourth Proportional to 11,690.11, 16,132.12 and 6,384.75

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Solution

The fourth proportional to 11,690.11, 16,132.12 and 6,384.75 is: 8,810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.11 : 16,132.12 = 6,384.75 : x
  2. Step 2: Convert to fraction form
    11,690.11/16,132.12 = 6,384.75/x
  3. Step 3: Cross multiply
    11,690.11x = 16,132.12 × 6,384.75
  4. Step 4: Simplify right side
    11,690.11x = 102,999,553.17
  5. Step 5: Solve for x
    x = 102,999,553.17/11,690.11
  6. Step 6: Final answer
    x = 8,810.83

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Half scale
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Double scale
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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.