Home / 8,451.22-11,663.86-5,311.66

Finding the Fourth Proportional to 8,451.22, 11,663.86 and 5,311.66

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Solution

The fourth proportional to 8,451.22, 11,663.86 and 5,311.66 is: 7,330.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.22 : 11,663.86 = 5,311.66 : x
  2. Step 2: Convert to fraction form
    8,451.22/11,663.86 = 5,311.66/x
  3. Step 3: Cross multiply
    8,451.22x = 11,663.86 × 5,311.66
  4. Step 4: Simplify right side
    8,451.22x = 61,954,458.61
  5. Step 5: Solve for x
    x = 61,954,458.61/8,451.22
  6. Step 6: Final answer
    x = 7,330.83

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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.