Home / 13,819.68-20,726.46-3,956.76

Finding the Fourth Proportional to 13,819.68, 20,726.46 and 3,956.76

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Solution

The fourth proportional to 13,819.68, 20,726.46 and 3,956.76 is: 5,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.68 : 20,726.46 = 3,956.76 : x
  2. Step 2: Convert to fraction form
    13,819.68/20,726.46 = 3,956.76/x
  3. Step 3: Cross multiply
    13,819.68x = 20,726.46 × 3,956.76
  4. Step 4: Simplify right side
    13,819.68x = 82,009,627.87
  5. Step 5: Solve for x
    x = 82,009,627.87/13,819.68
  6. Step 6: Final answer
    x = 5,934.26

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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.