Home / 11,869.80-17,778.78-6,927.18

Finding the Fourth Proportional to 11,869.80, 17,778.78 and 6,927.18

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Solution

The fourth proportional to 11,869.80, 17,778.78 and 6,927.18 is: 10,375.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.80 : 17,778.78 = 6,927.18 : x
  2. Step 2: Convert to fraction form
    11,869.80/17,778.78 = 6,927.18/x
  3. Step 3: Cross multiply
    11,869.80x = 17,778.78 × 6,927.18
  4. Step 4: Simplify right side
    11,869.80x = 123,156,809.24
  5. Step 5: Solve for x
    x = 123,156,809.24/11,869.80
  6. Step 6: Final answer
    x = 10,375.64

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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.