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Finding the Fourth Proportional to 8,289.66, 12,434.48 and 2,445.82

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Solution

The fourth proportional to 8,289.66, 12,434.48 and 2,445.82 is: 3,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.66 : 12,434.48 = 2,445.82 : x
  2. Step 2: Convert to fraction form
    8,289.66/12,434.48 = 2,445.82/x
  3. Step 3: Cross multiply
    8,289.66x = 12,434.48 × 2,445.82
  4. Step 4: Simplify right side
    8,289.66x = 30,412,499.87
  5. Step 5: Solve for x
    x = 30,412,499.87/8,289.66
  6. Step 6: Final answer
    x = 3,668.73

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.