Home / 8,382.12-12,565.36-2,831.58

Finding the Fourth Proportional to 8,382.12, 12,565.36 and 2,831.58

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Solution

The fourth proportional to 8,382.12, 12,565.36 and 2,831.58 is: 4,244.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,382.12 : 12,565.36 = 2,831.58 : x
  2. Step 2: Convert to fraction form
    8,382.12/12,565.36 = 2,831.58/x
  3. Step 3: Cross multiply
    8,382.12x = 12,565.36 × 2,831.58
  4. Step 4: Simplify right side
    8,382.12x = 35,579,809.68
  5. Step 5: Solve for x
    x = 35,579,809.68/8,382.12
  6. Step 6: Final answer
    x = 4,244.73

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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.