Home / 8,189.37-12,286.76-3,257.69

Finding the Fourth Proportional to 8,189.37, 12,286.76 and 3,257.69

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Solution

The fourth proportional to 8,189.37, 12,286.76 and 3,257.69 is: 4,887.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.37 : 12,286.76 = 3,257.69 : x
  2. Step 2: Convert to fraction form
    8,189.37/12,286.76 = 3,257.69/x
  3. Step 3: Cross multiply
    8,189.37x = 12,286.76 × 3,257.69
  4. Step 4: Simplify right side
    8,189.37x = 40,026,377.46
  5. Step 5: Solve for x
    x = 40,026,377.46/8,189.37
  6. Step 6: Final answer
    x = 4,887.60

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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.