Home / 11,371.70-17,057.55-5,129.30

Finding the Fourth Proportional to 11,371.70, 17,057.55 and 5,129.30

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Solution

The fourth proportional to 11,371.70, 17,057.55 and 5,129.30 is: 7,693.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,371.70 : 17,057.55 = 5,129.30 : x
  2. Step 2: Convert to fraction form
    11,371.70/17,057.55 = 5,129.30/x
  3. Step 3: Cross multiply
    11,371.70x = 17,057.55 × 5,129.30
  4. Step 4: Simplify right side
    11,371.70x = 87,493,291.22
  5. Step 5: Solve for x
    x = 87,493,291.22/11,371.70
  6. Step 6: Final answer
    x = 7,693.95

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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.