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Finding the Fourth Proportional to 8,893.80, 12,276 and 6,241.86

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Solution

The fourth proportional to 8,893.80, 12,276 and 6,241.86 is: 8,615.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.80 : 12,276 = 6,241.86 : x
  2. Step 2: Convert to fraction form
    8,893.80/12,276 = 6,241.86/x
  3. Step 3: Cross multiply
    8,893.80x = 12,276 × 6,241.86
  4. Step 4: Simplify right side
    8,893.80x = 76,625,073.36
  5. Step 5: Solve for x
    x = 76,625,073.36/8,893.80
  6. Step 6: Final answer
    x = 8,615.56

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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.