Home / 8,747.20-13,122.78-3,200.52

Finding the Fourth Proportional to 8,747.20, 13,122.78 and 3,200.52

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Solution

The fourth proportional to 8,747.20, 13,122.78 and 3,200.52 is: 4,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.20 : 13,122.78 = 3,200.52 : x
  2. Step 2: Convert to fraction form
    8,747.20/13,122.78 = 3,200.52/x
  3. Step 3: Cross multiply
    8,747.20x = 13,122.78 × 3,200.52
  4. Step 4: Simplify right side
    8,747.20x = 41,999,719.85
  5. Step 5: Solve for x
    x = 41,999,719.85/8,747.20
  6. Step 6: Final answer
    x = 4,801.50

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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.