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Finding the Fourth Proportional to 8,568.78, 12,853.16 and 2,328.81

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Solution

The fourth proportional to 8,568.78, 12,853.16 and 2,328.81 is: 3,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.78 : 12,853.16 = 2,328.81 : x
  2. Step 2: Convert to fraction form
    8,568.78/12,853.16 = 2,328.81/x
  3. Step 3: Cross multiply
    8,568.78x = 12,853.16 × 2,328.81
  4. Step 4: Simplify right side
    8,568.78x = 29,932,567.54
  5. Step 5: Solve for x
    x = 29,932,567.54/8,568.78
  6. Step 6: Final answer
    x = 3,493.21

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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.