Home / 9,819.28-14,727.30-3,154.87

Finding the Fourth Proportional to 9,819.28, 14,727.30 and 3,154.87

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Solution

The fourth proportional to 9,819.28, 14,727.30 and 3,154.87 is: 4,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.28 : 14,727.30 = 3,154.87 : x
  2. Step 2: Convert to fraction form
    9,819.28/14,727.30 = 3,154.87/x
  3. Step 3: Cross multiply
    9,819.28x = 14,727.30 × 3,154.87
  4. Step 4: Simplify right side
    9,819.28x = 46,462,716.95
  5. Step 5: Solve for x
    x = 46,462,716.95/9,819.28
  6. Step 6: Final answer
    x = 4,731.78

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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.