Home / 11,818.92-17,731.08-3,924

Finding the Fourth Proportional to 11,818.92, 17,731.08 and 3,924

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Solution

The fourth proportional to 11,818.92, 17,731.08 and 3,924 is: 5,886.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.92 : 17,731.08 = 3,924 : x
  2. Step 2: Convert to fraction form
    11,818.92/17,731.08 = 3,924/x
  3. Step 3: Cross multiply
    11,818.92x = 17,731.08 × 3,924
  4. Step 4: Simplify right side
    11,818.92x = 69,576,757.92
  5. Step 5: Solve for x
    x = 69,576,757.92/11,818.92
  6. Step 6: Final answer
    x = 5,886.90

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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.