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Finding the Fourth Proportional to 8,568.93, 12,851.81 and 3,887.81

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Solution

The fourth proportional to 8,568.93, 12,851.81 and 3,887.81 is: 5,831.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.93 : 12,851.81 = 3,887.81 : x
  2. Step 2: Convert to fraction form
    8,568.93/12,851.81 = 3,887.81/x
  3. Step 3: Cross multiply
    8,568.93x = 12,851.81 × 3,887.81
  4. Step 4: Simplify right side
    8,568.93x = 49,965,414.45
  5. Step 5: Solve for x
    x = 49,965,414.45/8,568.93
  6. Step 6: Final answer
    x = 5,831.00

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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.