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Finding the Fourth Proportional to 8,657.55, 12,988.08 and 2,735.37

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Solution

The fourth proportional to 8,657.55, 12,988.08 and 2,735.37 is: 4,103.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.55 : 12,988.08 = 2,735.37 : x
  2. Step 2: Convert to fraction form
    8,657.55/12,988.08 = 2,735.37/x
  3. Step 3: Cross multiply
    8,657.55x = 12,988.08 × 2,735.37
  4. Step 4: Simplify right side
    8,657.55x = 35,527,204.39
  5. Step 5: Solve for x
    x = 35,527,204.39/8,657.55
  6. Step 6: Final answer
    x = 4,103.61

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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.