Home / 13,819.03-20,725.59-3,955.66

Finding the Fourth Proportional to 13,819.03, 20,725.59 and 3,955.66

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Solution

The fourth proportional to 13,819.03, 20,725.59 and 3,955.66 is: 5,932.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.03 : 20,725.59 = 3,955.66 : x
  2. Step 2: Convert to fraction form
    13,819.03/20,725.59 = 3,955.66/x
  3. Step 3: Cross multiply
    13,819.03x = 20,725.59 × 3,955.66
  4. Step 4: Simplify right side
    13,819.03x = 81,983,387.34
  5. Step 5: Solve for x
    x = 81,983,387.34/13,819.03
  6. Step 6: Final answer
    x = 5,932.64

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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.