Home / 12,819.75-19,230.35-3,586.47

Finding the Fourth Proportional to 12,819.75, 19,230.35 and 3,586.47

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Solution

The fourth proportional to 12,819.75, 19,230.35 and 3,586.47 is: 5,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.75 : 19,230.35 = 3,586.47 : x
  2. Step 2: Convert to fraction form
    12,819.75/19,230.35 = 3,586.47/x
  3. Step 3: Cross multiply
    12,819.75x = 19,230.35 × 3,586.47
  4. Step 4: Simplify right side
    12,819.75x = 68,969,055.43
  5. Step 5: Solve for x
    x = 68,969,055.43/12,819.75
  6. Step 6: Final answer
    x = 5,379.91

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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.