Home / 12,608.11-18,914.91-3,842.80

Finding the Fourth Proportional to 12,608.11, 18,914.91 and 3,842.80

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Solution

The fourth proportional to 12,608.11, 18,914.91 and 3,842.80 is: 5,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.11 : 18,914.91 = 3,842.80 : x
  2. Step 2: Convert to fraction form
    12,608.11/18,914.91 = 3,842.80/x
  3. Step 3: Cross multiply
    12,608.11x = 18,914.91 × 3,842.80
  4. Step 4: Simplify right side
    12,608.11x = 72,686,216.15
  5. Step 5: Solve for x
    x = 72,686,216.15/12,608.11
  6. Step 6: Final answer
    x = 5,765.04

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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.