Home / 12,540.09-17,306.96-8,236.90

Finding the Fourth Proportional to 12,540.09, 17,306.96 and 8,236.90

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Solution

The fourth proportional to 12,540.09, 17,306.96 and 8,236.90 is: 11,367.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.09 : 17,306.96 = 8,236.90 : x
  2. Step 2: Convert to fraction form
    12,540.09/17,306.96 = 8,236.90/x
  3. Step 3: Cross multiply
    12,540.09x = 17,306.96 × 8,236.90
  4. Step 4: Simplify right side
    12,540.09x = 142,555,614.37
  5. Step 5: Solve for x
    x = 142,555,614.37/12,540.09
  6. Step 6: Final answer
    x = 11,367.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.