Home / 11,112.42-16,671.35-7,831.92

Finding the Fourth Proportional to 11,112.42, 16,671.35 and 7,831.92

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Solution

The fourth proportional to 11,112.42, 16,671.35 and 7,831.92 is: 11,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.42 : 16,671.35 = 7,831.92 : x
  2. Step 2: Convert to fraction form
    11,112.42/16,671.35 = 7,831.92/x
  3. Step 3: Cross multiply
    11,112.42x = 16,671.35 × 7,831.92
  4. Step 4: Simplify right side
    11,112.42x = 130,568,761.59
  5. Step 5: Solve for x
    x = 130,568,761.59/11,112.42
  6. Step 6: Final answer
    x = 11,749.80

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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.