Home / 11,943.60-17,910.79-3,936.45

Finding the Fourth Proportional to 11,943.60, 17,910.79 and 3,936.45

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Solution

The fourth proportional to 11,943.60, 17,910.79 and 3,936.45 is: 5,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.60 : 17,910.79 = 3,936.45 : x
  2. Step 2: Convert to fraction form
    11,943.60/17,910.79 = 3,936.45/x
  3. Step 3: Cross multiply
    11,943.60x = 17,910.79 × 3,936.45
  4. Step 4: Simplify right side
    11,943.60x = 70,504,839.74
  5. Step 5: Solve for x
    x = 70,504,839.74/11,943.60
  6. Step 6: Final answer
    x = 5,903.15

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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.