Home / 12,089.70-18,134.55-3,324.60

Finding the Fourth Proportional to 12,089.70, 18,134.55 and 3,324.60

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Solution

The fourth proportional to 12,089.70, 18,134.55 and 3,324.60 is: 4,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.70 : 18,134.55 = 3,324.60 : x
  2. Step 2: Convert to fraction form
    12,089.70/18,134.55 = 3,324.60/x
  3. Step 3: Cross multiply
    12,089.70x = 18,134.55 × 3,324.60
  4. Step 4: Simplify right side
    12,089.70x = 60,290,124.93
  5. Step 5: Solve for x
    x = 60,290,124.93/12,089.70
  6. Step 6: Final answer
    x = 4,986.90

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Similar ratio
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1.5x scale

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.