Home / 11,815.92-17,721.20-3,496.56

Finding the Fourth Proportional to 11,815.92, 17,721.20 and 3,496.56

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Solution

The fourth proportional to 11,815.92, 17,721.20 and 3,496.56 is: 5,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.92 : 17,721.20 = 3,496.56 : x
  2. Step 2: Convert to fraction form
    11,815.92/17,721.20 = 3,496.56/x
  3. Step 3: Cross multiply
    11,815.92x = 17,721.20 × 3,496.56
  4. Step 4: Simplify right side
    11,815.92x = 61,963,239.07
  5. Step 5: Solve for x
    x = 61,963,239.07/11,815.92
  6. Step 6: Final answer
    x = 5,244.05

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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.