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Finding the Fourth Proportional to 8,608, 11,877.21 and 5,069.92

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Solution

The fourth proportional to 8,608, 11,877.21 and 5,069.92 is: 6,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608 : 11,877.21 = 5,069.92 : x
  2. Step 2: Convert to fraction form
    8,608/11,877.21 = 5,069.92/x
  3. Step 3: Cross multiply
    8,608x = 11,877.21 × 5,069.92
  4. Step 4: Simplify right side
    8,608x = 60,216,504.52
  5. Step 5: Solve for x
    x = 60,216,504.52/8,608
  6. Step 6: Final answer
    x = 6,995.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.