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Finding the Fourth Proportional to 8,650.20, 12,975.48 and 3,384.48

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Solution

The fourth proportional to 8,650.20, 12,975.48 and 3,384.48 is: 5,076.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.20 : 12,975.48 = 3,384.48 : x
  2. Step 2: Convert to fraction form
    8,650.20/12,975.48 = 3,384.48/x
  3. Step 3: Cross multiply
    8,650.20x = 12,975.48 × 3,384.48
  4. Step 4: Simplify right side
    8,650.20x = 43,915,252.55
  5. Step 5: Solve for x
    x = 43,915,252.55/8,650.20
  6. Step 6: Final answer
    x = 5,076.79

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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.