Home / 11,982.78-17,974.98-5,744.16

Finding the Fourth Proportional to 11,982.78, 17,974.98 and 5,744.16

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Solution

The fourth proportional to 11,982.78, 17,974.98 and 5,744.16 is: 8,616.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.78 : 17,974.98 = 5,744.16 : x
  2. Step 2: Convert to fraction form
    11,982.78/17,974.98 = 5,744.16/x
  3. Step 3: Cross multiply
    11,982.78x = 17,974.98 × 5,744.16
  4. Step 4: Simplify right side
    11,982.78x = 103,251,161.12
  5. Step 5: Solve for x
    x = 103,251,161.12/11,982.78
  6. Step 6: Final answer
    x = 8,616.63

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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.