Home / 11,996.92-16,555.76-6,691.74

Finding the Fourth Proportional to 11,996.92, 16,555.76 and 6,691.74

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Solution

The fourth proportional to 11,996.92, 16,555.76 and 6,691.74 is: 9,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.92 : 16,555.76 = 6,691.74 : x
  2. Step 2: Convert to fraction form
    11,996.92/16,555.76 = 6,691.74/x
  3. Step 3: Cross multiply
    11,996.92x = 16,555.76 × 6,691.74
  4. Step 4: Simplify right side
    11,996.92x = 110,786,841.42
  5. Step 5: Solve for x
    x = 110,786,841.42/11,996.92
  6. Step 6: Final answer
    x = 9,234.61

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Half scale
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Double scale
Find fourth proportional to 11,997.92, 16,557.14 and 6,692.74
Similar ratio
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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.