Home / 12,372.75-18,559.67-3,608.42

Finding the Fourth Proportional to 12,372.75, 18,559.67 and 3,608.42

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Solution

The fourth proportional to 12,372.75, 18,559.67 and 3,608.42 is: 5,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.75 : 18,559.67 = 3,608.42 : x
  2. Step 2: Convert to fraction form
    12,372.75/18,559.67 = 3,608.42/x
  3. Step 3: Cross multiply
    12,372.75x = 18,559.67 × 3,608.42
  4. Step 4: Simplify right side
    12,372.75x = 66,970,973.58
  5. Step 5: Solve for x
    x = 66,970,973.58/12,372.75
  6. Step 6: Final answer
    x = 5,412.78

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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.