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Finding the Fourth Proportional to 12,568.03, 18,839.08 and 5,647.39

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Solution

The fourth proportional to 12,568.03, 18,839.08 and 5,647.39 is: 8,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.03 : 18,839.08 = 5,647.39 : x
  2. Step 2: Convert to fraction form
    12,568.03/18,839.08 = 5,647.39/x
  3. Step 3: Cross multiply
    12,568.03x = 18,839.08 × 5,647.39
  4. Step 4: Simplify right side
    12,568.03x = 106,391,591.96
  5. Step 5: Solve for x
    x = 106,391,591.96/12,568.03
  6. Step 6: Final answer
    x = 8,465.26

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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.