Home / 12,253.06-18,380.81-3,489.27

Finding the Fourth Proportional to 12,253.06, 18,380.81 and 3,489.27

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Solution

The fourth proportional to 12,253.06, 18,380.81 and 3,489.27 is: 5,234.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.06 : 18,380.81 = 3,489.27 : x
  2. Step 2: Convert to fraction form
    12,253.06/18,380.81 = 3,489.27/x
  3. Step 3: Cross multiply
    12,253.06x = 18,380.81 × 3,489.27
  4. Step 4: Simplify right side
    12,253.06x = 64,135,608.91
  5. Step 5: Solve for x
    x = 64,135,608.91/12,253.06
  6. Step 6: Final answer
    x = 5,234.25

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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.