Home / 10,831.78-16,247.67-3,906.28

Finding the Fourth Proportional to 10,831.78, 16,247.67 and 3,906.28

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Solution

The fourth proportional to 10,831.78, 16,247.67 and 3,906.28 is: 5,859.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.78 : 16,247.67 = 3,906.28 : x
  2. Step 2: Convert to fraction form
    10,831.78/16,247.67 = 3,906.28/x
  3. Step 3: Cross multiply
    10,831.78x = 16,247.67 × 3,906.28
  4. Step 4: Simplify right side
    10,831.78x = 63,467,983.33
  5. Step 5: Solve for x
    x = 63,467,983.33/10,831.78
  6. Step 6: Final answer
    x = 5,859.42

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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.