Home / 11,838.11-17,760.05-3,940.61

Finding the Fourth Proportional to 11,838.11, 17,760.05 and 3,940.61

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Solution

The fourth proportional to 11,838.11, 17,760.05 and 3,940.61 is: 5,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.11 : 17,760.05 = 3,940.61 : x
  2. Step 2: Convert to fraction form
    11,838.11/17,760.05 = 3,940.61/x
  3. Step 3: Cross multiply
    11,838.11x = 17,760.05 × 3,940.61
  4. Step 4: Simplify right side
    11,838.11x = 69,985,322.13
  5. Step 5: Solve for x
    x = 69,985,322.13/11,838.11
  6. Step 6: Final answer
    x = 5,911.87

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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.