Home / 7,467.78-11,195.54-3,517.11

Finding the Fourth Proportional to 7,467.78, 11,195.54 and 3,517.11

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Solution

The fourth proportional to 7,467.78, 11,195.54 and 3,517.11 is: 5,272.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,467.78 : 11,195.54 = 3,517.11 : x
  2. Step 2: Convert to fraction form
    7,467.78/11,195.54 = 3,517.11/x
  3. Step 3: Cross multiply
    7,467.78x = 11,195.54 × 3,517.11
  4. Step 4: Simplify right side
    7,467.78x = 39,375,928.10
  5. Step 5: Solve for x
    x = 39,375,928.10/7,467.78
  6. Step 6: Final answer
    x = 5,272.78

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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.