Home / 7,563.60-11,340.54-3,179.88

Finding the Fourth Proportional to 7,563.60, 11,340.54 and 3,179.88

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Solution

The fourth proportional to 7,563.60, 11,340.54 and 3,179.88 is: 4,767.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,563.60 : 11,340.54 = 3,179.88 : x
  2. Step 2: Convert to fraction form
    7,563.60/11,340.54 = 3,179.88/x
  3. Step 3: Cross multiply
    7,563.60x = 11,340.54 × 3,179.88
  4. Step 4: Simplify right side
    7,563.60x = 36,061,556.34
  5. Step 5: Solve for x
    x = 36,061,556.34/7,563.60
  6. Step 6: Final answer
    x = 4,767.78

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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.