Home / 12,230.06-18,347.78-3,910.75

Finding the Fourth Proportional to 12,230.06, 18,347.78 and 3,910.75

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Solution

The fourth proportional to 12,230.06, 18,347.78 and 3,910.75 is: 5,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.06 : 18,347.78 = 3,910.75 : x
  2. Step 2: Convert to fraction form
    12,230.06/18,347.78 = 3,910.75/x
  3. Step 3: Cross multiply
    12,230.06x = 18,347.78 × 3,910.75
  4. Step 4: Simplify right side
    12,230.06x = 71,753,544.54
  5. Step 5: Solve for x
    x = 71,753,544.54/12,230.06
  6. Step 6: Final answer
    x = 5,866.98

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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.