Home / 11,279.06-16,918.82-3,487.87

Finding the Fourth Proportional to 11,279.06, 16,918.82 and 3,487.87

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Solution

The fourth proportional to 11,279.06, 16,918.82 and 3,487.87 is: 5,231.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.06 : 16,918.82 = 3,487.87 : x
  2. Step 2: Convert to fraction form
    11,279.06/16,918.82 = 3,487.87/x
  3. Step 3: Cross multiply
    11,279.06x = 16,918.82 × 3,487.87
  4. Step 4: Simplify right side
    11,279.06x = 59,010,542.68
  5. Step 5: Solve for x
    x = 59,010,542.68/11,279.06
  6. Step 6: Final answer
    x = 5,231.87

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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.