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Finding the Fourth Proportional to 8,503.58, 12,753.81 and 2,881.55

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Solution

The fourth proportional to 8,503.58, 12,753.81 and 2,881.55 is: 4,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.58 : 12,753.81 = 2,881.55 : x
  2. Step 2: Convert to fraction form
    8,503.58/12,753.81 = 2,881.55/x
  3. Step 3: Cross multiply
    8,503.58x = 12,753.81 × 2,881.55
  4. Step 4: Simplify right side
    8,503.58x = 36,750,677.44
  5. Step 5: Solve for x
    x = 36,750,677.44/8,503.58
  6. Step 6: Final answer
    x = 4,321.79

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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.