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Finding the Fourth Proportional to 8,652.85, 12,971.48 and 3,104.89

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Solution

The fourth proportional to 8,652.85, 12,971.48 and 3,104.89 is: 4,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.85 : 12,971.48 = 3,104.89 : x
  2. Step 2: Convert to fraction form
    8,652.85/12,971.48 = 3,104.89/x
  3. Step 3: Cross multiply
    8,652.85x = 12,971.48 × 3,104.89
  4. Step 4: Simplify right side
    8,652.85x = 40,275,018.54
  5. Step 5: Solve for x
    x = 40,275,018.54/8,652.85
  6. Step 6: Final answer
    x = 4,654.54

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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.