Home / 13,934.56-20,872.56-11,310.88

Finding the Fourth Proportional to 13,934.56, 20,872.56 and 11,310.88

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Solution

The fourth proportional to 13,934.56, 20,872.56 and 11,310.88 is: 16,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.56 : 20,872.56 = 11,310.88 : x
  2. Step 2: Convert to fraction form
    13,934.56/20,872.56 = 11,310.88/x
  3. Step 3: Cross multiply
    13,934.56x = 20,872.56 × 11,310.88
  4. Step 4: Simplify right side
    13,934.56x = 236,087,021.45
  5. Step 5: Solve for x
    x = 236,087,021.45/13,934.56
  6. Step 6: Final answer
    x = 16,942.55

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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.