Home / 11,385.17-17,080.28-3,488.78

Finding the Fourth Proportional to 11,385.17, 17,080.28 and 3,488.78

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Solution

The fourth proportional to 11,385.17, 17,080.28 and 3,488.78 is: 5,233.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.17 : 17,080.28 = 3,488.78 : x
  2. Step 2: Convert to fraction form
    11,385.17/17,080.28 = 3,488.78/x
  3. Step 3: Cross multiply
    11,385.17x = 17,080.28 × 3,488.78
  4. Step 4: Simplify right side
    11,385.17x = 59,589,236.41
  5. Step 5: Solve for x
    x = 59,589,236.41/11,385.17
  6. Step 6: Final answer
    x = 5,233.94

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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.