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Finding the Fourth Proportional to 8,537.78, 12,813.16 and 4,158.02

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Solution

The fourth proportional to 8,537.78, 12,813.16 and 4,158.02 is: 6,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.78 : 12,813.16 = 4,158.02 : x
  2. Step 2: Convert to fraction form
    8,537.78/12,813.16 = 4,158.02/x
  3. Step 3: Cross multiply
    8,537.78x = 12,813.16 × 4,158.02
  4. Step 4: Simplify right side
    8,537.78x = 53,277,375.54
  5. Step 5: Solve for x
    x = 53,277,375.54/8,537.78
  6. Step 6: Final answer
    x = 6,240.19

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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.