Home / 13,939.97-20,908.94-4,579.88

Finding the Fourth Proportional to 13,939.97, 20,908.94 and 4,579.88

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Solution

The fourth proportional to 13,939.97, 20,908.94 and 4,579.88 is: 6,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.97 : 20,908.94 = 4,579.88 : x
  2. Step 2: Convert to fraction form
    13,939.97/20,908.94 = 4,579.88/x
  3. Step 3: Cross multiply
    13,939.97x = 20,908.94 × 4,579.88
  4. Step 4: Simplify right side
    13,939.97x = 95,760,308.68
  5. Step 5: Solve for x
    x = 95,760,308.68/13,939.97
  6. Step 6: Final answer
    x = 6,869.48

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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.