Home / 11,768.38-17,655.20-3,976.99

Finding the Fourth Proportional to 11,768.38, 17,655.20 and 3,976.99

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Solution

The fourth proportional to 11,768.38, 17,655.20 and 3,976.99 is: 5,966.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.38 : 17,655.20 = 3,976.99 : x
  2. Step 2: Convert to fraction form
    11,768.38/17,655.20 = 3,976.99/x
  3. Step 3: Cross multiply
    11,768.38x = 17,655.20 × 3,976.99
  4. Step 4: Simplify right side
    11,768.38x = 70,214,553.85
  5. Step 5: Solve for x
    x = 70,214,553.85/11,768.38
  6. Step 6: Final answer
    x = 5,966.37

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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.