Home / 12,504.11-18,759.13-3,739.30

Finding the Fourth Proportional to 12,504.11, 18,759.13 and 3,739.30

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Solution

The fourth proportional to 12,504.11, 18,759.13 and 3,739.30 is: 5,609.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.11 : 18,759.13 = 3,739.30 : x
  2. Step 2: Convert to fraction form
    12,504.11/18,759.13 = 3,739.30/x
  3. Step 3: Cross multiply
    12,504.11x = 18,759.13 × 3,739.30
  4. Step 4: Simplify right side
    12,504.11x = 70,145,958.56
  5. Step 5: Solve for x
    x = 70,145,958.56/12,504.11
  6. Step 6: Final answer
    x = 5,609.83

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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.