Home / 7,819.20-11,713.68-4,345.92

Finding the Fourth Proportional to 7,819.20, 11,713.68 and 4,345.92

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Solution

The fourth proportional to 7,819.20, 11,713.68 and 4,345.92 is: 6,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.20 : 11,713.68 = 4,345.92 : x
  2. Step 2: Convert to fraction form
    7,819.20/11,713.68 = 4,345.92/x
  3. Step 3: Cross multiply
    7,819.20x = 11,713.68 × 4,345.92
  4. Step 4: Simplify right side
    7,819.20x = 50,906,716.19
  5. Step 5: Solve for x
    x = 50,906,716.19/7,819.20
  6. Step 6: Final answer
    x = 6,510.48

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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.