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Finding the Fourth Proportional to 8,236.72, 12,347.21 and 3,797.38

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Solution

The fourth proportional to 8,236.72, 12,347.21 and 3,797.38 is: 5,692.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.72 : 12,347.21 = 3,797.38 : x
  2. Step 2: Convert to fraction form
    8,236.72/12,347.21 = 3,797.38/x
  3. Step 3: Cross multiply
    8,236.72x = 12,347.21 × 3,797.38
  4. Step 4: Simplify right side
    8,236.72x = 46,887,062.56
  5. Step 5: Solve for x
    x = 46,887,062.56/8,236.72
  6. Step 6: Final answer
    x = 5,692.44

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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.