Home / 8,538-12,786.36-4,144.56

Finding the Fourth Proportional to 8,538, 12,786.36 and 4,144.56

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Solution

The fourth proportional to 8,538, 12,786.36 and 4,144.56 is: 6,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538 : 12,786.36 = 4,144.56 : x
  2. Step 2: Convert to fraction form
    8,538/12,786.36 = 4,144.56/x
  3. Step 3: Cross multiply
    8,538x = 12,786.36 × 4,144.56
  4. Step 4: Simplify right side
    8,538x = 52,993,836.20
  5. Step 5: Solve for x
    x = 52,993,836.20/8,538
  6. Step 6: Final answer
    x = 6,206.82

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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.