Home / 12,216.11-18,324.21-2,982.11

Finding the Fourth Proportional to 12,216.11, 18,324.21 and 2,982.11

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Solution

The fourth proportional to 12,216.11, 18,324.21 and 2,982.11 is: 4,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.11 : 18,324.21 = 2,982.11 : x
  2. Step 2: Convert to fraction form
    12,216.11/18,324.21 = 2,982.11/x
  3. Step 3: Cross multiply
    12,216.11x = 18,324.21 × 2,982.11
  4. Step 4: Simplify right side
    12,216.11x = 54,644,809.88
  5. Step 5: Solve for x
    x = 54,644,809.88/12,216.11
  6. Step 6: Final answer
    x = 4,473.18

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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.