Home / 11,961.71-17,949.17-4,940.09

Finding the Fourth Proportional to 11,961.71, 17,949.17 and 4,940.09

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Solution

The fourth proportional to 11,961.71, 17,949.17 and 4,940.09 is: 7,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.71 : 17,949.17 = 4,940.09 : x
  2. Step 2: Convert to fraction form
    11,961.71/17,949.17 = 4,940.09/x
  3. Step 3: Cross multiply
    11,961.71x = 17,949.17 × 4,940.09
  4. Step 4: Simplify right side
    11,961.71x = 88,670,419.92
  5. Step 5: Solve for x
    x = 88,670,419.92/11,961.71
  6. Step 6: Final answer
    x = 7,412.86

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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.