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Finding the Fourth Proportional to 8,387.03, 12,582.09 and 2,765.03

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Solution

The fourth proportional to 8,387.03, 12,582.09 and 2,765.03 is: 4,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.03 : 12,582.09 = 2,765.03 : x
  2. Step 2: Convert to fraction form
    8,387.03/12,582.09 = 2,765.03/x
  3. Step 3: Cross multiply
    8,387.03x = 12,582.09 × 2,765.03
  4. Step 4: Simplify right side
    8,387.03x = 34,789,793.40
  5. Step 5: Solve for x
    x = 34,789,793.40/8,387.03
  6. Step 6: Final answer
    x = 4,148.05

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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.