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Finding the Fourth Proportional to 8,867, 13,300.50 and 2,711

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Solution

The fourth proportional to 8,867, 13,300.50 and 2,711 is: 4,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867 : 13,300.50 = 2,711 : x
  2. Step 2: Convert to fraction form
    8,867/13,300.50 = 2,711/x
  3. Step 3: Cross multiply
    8,867x = 13,300.50 × 2,711
  4. Step 4: Simplify right side
    8,867x = 36,057,655.50
  5. Step 5: Solve for x
    x = 36,057,655.50/8,867
  6. Step 6: Final answer
    x = 4,066.50

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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.