Home / 11,983.31-17,975-3,663.29

Finding the Fourth Proportional to 11,983.31, 17,975 and 3,663.29

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Solution

The fourth proportional to 11,983.31, 17,975 and 3,663.29 is: 5,494.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.31 : 17,975 = 3,663.29 : x
  2. Step 2: Convert to fraction form
    11,983.31/17,975 = 3,663.29/x
  3. Step 3: Cross multiply
    11,983.31x = 17,975 × 3,663.29
  4. Step 4: Simplify right side
    11,983.31x = 65,847,637.75
  5. Step 5: Solve for x
    x = 65,847,637.75/11,983.31
  6. Step 6: Final answer
    x = 5,494.95

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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.