Home / 12,151.26-18,227.28-3,831.35

Finding the Fourth Proportional to 12,151.26, 18,227.28 and 3,831.35

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Solution

The fourth proportional to 12,151.26, 18,227.28 and 3,831.35 is: 5,747.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.26 : 18,227.28 = 3,831.35 : x
  2. Step 2: Convert to fraction form
    12,151.26/18,227.28 = 3,831.35/x
  3. Step 3: Cross multiply
    12,151.26x = 18,227.28 × 3,831.35
  4. Step 4: Simplify right side
    12,151.26x = 69,835,093.44
  5. Step 5: Solve for x
    x = 69,835,093.44/12,151.26
  6. Step 6: Final answer
    x = 5,747.15

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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.