Home / 12,151.82-18,227.03-3,831.65

Finding the Fourth Proportional to 12,151.82, 18,227.03 and 3,831.65

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Solution

The fourth proportional to 12,151.82, 18,227.03 and 3,831.65 is: 5,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.82 : 18,227.03 = 3,831.65 : x
  2. Step 2: Convert to fraction form
    12,151.82/18,227.03 = 3,831.65/x
  3. Step 3: Cross multiply
    12,151.82x = 18,227.03 × 3,831.65
  4. Step 4: Simplify right side
    12,151.82x = 69,839,517.94
  5. Step 5: Solve for x
    x = 69,839,517.94/12,151.82
  6. Step 6: Final answer
    x = 5,747.25

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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.