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Finding the Fourth Proportional to 8,236.67, 12,367.34 and 7,129.52

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Solution

The fourth proportional to 8,236.67, 12,367.34 and 7,129.52 is: 10,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.67 : 12,367.34 = 7,129.52 : x
  2. Step 2: Convert to fraction form
    8,236.67/12,367.34 = 7,129.52/x
  3. Step 3: Cross multiply
    8,236.67x = 12,367.34 × 7,129.52
  4. Step 4: Simplify right side
    8,236.67x = 88,173,100.39
  5. Step 5: Solve for x
    x = 88,173,100.39/8,236.67
  6. Step 6: Final answer
    x = 10,704.95

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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.