Home / 8,831.43-13,278.71-8,146.58

Finding the Fourth Proportional to 8,831.43, 13,278.71 and 8,146.58

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Solution

The fourth proportional to 8,831.43, 13,278.71 and 8,146.58 is: 12,248.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.43 : 13,278.71 = 8,146.58 : x
  2. Step 2: Convert to fraction form
    8,831.43/13,278.71 = 8,146.58/x
  3. Step 3: Cross multiply
    8,831.43x = 13,278.71 × 8,146.58
  4. Step 4: Simplify right side
    8,831.43x = 108,176,027.28
  5. Step 5: Solve for x
    x = 108,176,027.28/8,831.43
  6. Step 6: Final answer
    x = 12,248.98

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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.