Home / 12,190.44-18,286.02-8,438.52

Finding the Fourth Proportional to 12,190.44, 18,286.02 and 8,438.52

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Solution

The fourth proportional to 12,190.44, 18,286.02 and 8,438.52 is: 12,658.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.44 : 18,286.02 = 8,438.52 : x
  2. Step 2: Convert to fraction form
    12,190.44/18,286.02 = 8,438.52/x
  3. Step 3: Cross multiply
    12,190.44x = 18,286.02 × 8,438.52
  4. Step 4: Simplify right side
    12,190.44x = 154,306,945.49
  5. Step 5: Solve for x
    x = 154,306,945.49/12,190.44
  6. Step 6: Final answer
    x = 12,658.03

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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.