Home / 18,115.75-27,174.78-6,270.66

Finding the Fourth Proportional to 18,115.75, 27,174.78 and 6,270.66

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Solution

The fourth proportional to 18,115.75, 27,174.78 and 6,270.66 is: 9,406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.75 : 27,174.78 = 6,270.66 : x
  2. Step 2: Convert to fraction form
    18,115.75/27,174.78 = 6,270.66/x
  3. Step 3: Cross multiply
    18,115.75x = 27,174.78 × 6,270.66
  4. Step 4: Simplify right side
    18,115.75x = 170,403,805.95
  5. Step 5: Solve for x
    x = 170,403,805.95/18,115.75
  6. Step 6: Final answer
    x = 9,406.39

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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.