Home / 18,239.85-25,170.14-12,270.56

Finding the Fourth Proportional to 18,239.85, 25,170.14 and 12,270.56

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Solution

The fourth proportional to 18,239.85, 25,170.14 and 12,270.56 is: 16,932.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.85 : 25,170.14 = 12,270.56 : x
  2. Step 2: Convert to fraction form
    18,239.85/25,170.14 = 12,270.56/x
  3. Step 3: Cross multiply
    18,239.85x = 25,170.14 × 12,270.56
  4. Step 4: Simplify right side
    18,239.85x = 308,851,617.90
  5. Step 5: Solve for x
    x = 308,851,617.90/18,239.85
  6. Step 6: Final answer
    x = 16,932.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.