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Finding the Fourth Proportional to 8,207.00, 12,310.66 and 2,660.33

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Solution

The fourth proportional to 8,207.00, 12,310.66 and 2,660.33 is: 3,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.00 : 12,310.66 = 2,660.33 : x
  2. Step 2: Convert to fraction form
    8,207.00/12,310.66 = 2,660.33/x
  3. Step 3: Cross multiply
    8,207.00x = 12,310.66 × 2,660.33
  4. Step 4: Simplify right side
    8,207.00x = 32,750,375.49
  5. Step 5: Solve for x
    x = 32,750,375.49/8,207.00
  6. Step 6: Final answer
    x = 3,990.54

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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.