Home / 8,236.20-12,342.14-3,782.88

Finding the Fourth Proportional to 8,236.20, 12,342.14 and 3,782.88

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Solution

The fourth proportional to 8,236.20, 12,342.14 and 3,782.88 is: 5,668.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.20 : 12,342.14 = 3,782.88 : x
  2. Step 2: Convert to fraction form
    8,236.20/12,342.14 = 3,782.88/x
  3. Step 3: Cross multiply
    8,236.20x = 12,342.14 × 3,782.88
  4. Step 4: Simplify right side
    8,236.20x = 46,688,815.65
  5. Step 5: Solve for x
    x = 46,688,815.65/8,236.20
  6. Step 6: Final answer
    x = 5,668.73

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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.