Home / 13,795.97-20,694.64-3,936.70

Finding the Fourth Proportional to 13,795.97, 20,694.64 and 3,936.70

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Solution

The fourth proportional to 13,795.97, 20,694.64 and 3,936.70 is: 5,905.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.97 : 20,694.64 = 3,936.70 : x
  2. Step 2: Convert to fraction form
    13,795.97/20,694.64 = 3,936.70/x
  3. Step 3: Cross multiply
    13,795.97x = 20,694.64 × 3,936.70
  4. Step 4: Simplify right side
    13,795.97x = 81,468,517.87
  5. Step 5: Solve for x
    x = 81,468,517.87/13,795.97
  6. Step 6: Final answer
    x = 5,905.24

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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.