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Finding the Fourth Proportional to 8,512.50, 12,770.36 and 2,667.54

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Solution

The fourth proportional to 8,512.50, 12,770.36 and 2,667.54 is: 4,001.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.50 : 12,770.36 = 2,667.54 : x
  2. Step 2: Convert to fraction form
    8,512.50/12,770.36 = 2,667.54/x
  3. Step 3: Cross multiply
    8,512.50x = 12,770.36 × 2,667.54
  4. Step 4: Simplify right side
    8,512.50x = 34,065,446.11
  5. Step 5: Solve for x
    x = 34,065,446.11/8,512.50
  6. Step 6: Final answer
    x = 4,001.81

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1.5x scale

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.