Home / 12,819.12-19,228.68-3,584.88

Finding the Fourth Proportional to 12,819.12, 19,228.68 and 3,584.88

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Solution

The fourth proportional to 12,819.12, 19,228.68 and 3,584.88 is: 5,377.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.12 : 19,228.68 = 3,584.88 : x
  2. Step 2: Convert to fraction form
    12,819.12/19,228.68 = 3,584.88/x
  3. Step 3: Cross multiply
    12,819.12x = 19,228.68 × 3,584.88
  4. Step 4: Simplify right side
    12,819.12x = 68,932,510.36
  5. Step 5: Solve for x
    x = 68,932,510.36/12,819.12
  6. Step 6: Final answer
    x = 5,377.32

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Similar ratio
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1.5x scale

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.