Home / 12,216.27-18,325.66-3,331.79

Finding the Fourth Proportional to 12,216.27, 18,325.66 and 3,331.79

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Solution

The fourth proportional to 12,216.27, 18,325.66 and 3,331.79 is: 4,998.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.27 : 18,325.66 = 3,331.79 : x
  2. Step 2: Convert to fraction form
    12,216.27/18,325.66 = 3,331.79/x
  3. Step 3: Cross multiply
    12,216.27x = 18,325.66 × 3,331.79
  4. Step 4: Simplify right side
    12,216.27x = 61,057,250.73
  5. Step 5: Solve for x
    x = 61,057,250.73/12,216.27
  6. Step 6: Final answer
    x = 4,998.03

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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.