Home / 7,819.30-11,727.63-2,195.68

Finding the Fourth Proportional to 7,819.30, 11,727.63 and 2,195.68

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Solution

The fourth proportional to 7,819.30, 11,727.63 and 2,195.68 is: 3,293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.30 : 11,727.63 = 2,195.68 : x
  2. Step 2: Convert to fraction form
    7,819.30/11,727.63 = 2,195.68/x
  3. Step 3: Cross multiply
    7,819.30x = 11,727.63 × 2,195.68
  4. Step 4: Simplify right side
    7,819.30x = 25,750,122.64
  5. Step 5: Solve for x
    x = 25,750,122.64/7,819.30
  6. Step 6: Final answer
    x = 3,293.15

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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.