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Finding the Fourth Proportional to 8,537.99, 12,810.95 and 3,608.78

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Solution

The fourth proportional to 8,537.99, 12,810.95 and 3,608.78 is: 5,414.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.99 : 12,810.95 = 3,608.78 : x
  2. Step 2: Convert to fraction form
    8,537.99/12,810.95 = 3,608.78/x
  3. Step 3: Cross multiply
    8,537.99x = 12,810.95 × 3,608.78
  4. Step 4: Simplify right side
    8,537.99x = 46,231,882.10
  5. Step 5: Solve for x
    x = 46,231,882.10/8,537.99
  6. Step 6: Final answer
    x = 5,414.84

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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.