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Finding the Fourth Proportional to 8,853.66, 12,214.14 and 5,489.73

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Solution

The fourth proportional to 8,853.66, 12,214.14 and 5,489.73 is: 7,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.66 : 12,214.14 = 5,489.73 : x
  2. Step 2: Convert to fraction form
    8,853.66/12,214.14 = 5,489.73/x
  3. Step 3: Cross multiply
    8,853.66x = 12,214.14 × 5,489.73
  4. Step 4: Simplify right side
    8,853.66x = 67,052,330.78
  5. Step 5: Solve for x
    x = 67,052,330.78/8,853.66
  6. Step 6: Final answer
    x = 7,573.40

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Half scale
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Double scale
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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.