Home / 12,540.35-18,797.49-4,217.54

Finding the Fourth Proportional to 12,540.35, 18,797.49 and 4,217.54

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Solution

The fourth proportional to 12,540.35, 18,797.49 and 4,217.54 is: 6,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.35 : 18,797.49 = 4,217.54 : x
  2. Step 2: Convert to fraction form
    12,540.35/18,797.49 = 4,217.54/x
  3. Step 3: Cross multiply
    12,540.35x = 18,797.49 × 4,217.54
  4. Step 4: Simplify right side
    12,540.35x = 79,279,071.99
  5. Step 5: Solve for x
    x = 79,279,071.99/12,540.35
  6. Step 6: Final answer
    x = 6,321.92

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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.