Home / 11,378.10-17,070.15-3,982.56

Finding the Fourth Proportional to 11,378.10, 17,070.15 and 3,982.56

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Solution

The fourth proportional to 11,378.10, 17,070.15 and 3,982.56 is: 5,974.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.10 : 17,070.15 = 3,982.56 : x
  2. Step 2: Convert to fraction form
    11,378.10/17,070.15 = 3,982.56/x
  3. Step 3: Cross multiply
    11,378.10x = 17,070.15 × 3,982.56
  4. Step 4: Simplify right side
    11,378.10x = 67,982,896.58
  5. Step 5: Solve for x
    x = 67,982,896.58/11,378.10
  6. Step 6: Final answer
    x = 5,974.89

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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.