Home / 12,215.27-18,324.16-3,330.79

Finding the Fourth Proportional to 12,215.27, 18,324.16 and 3,330.79

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Solution

The fourth proportional to 12,215.27, 18,324.16 and 3,330.79 is: 4,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.27 : 18,324.16 = 3,330.79 : x
  2. Step 2: Convert to fraction form
    12,215.27/18,324.16 = 3,330.79/x
  3. Step 3: Cross multiply
    12,215.27x = 18,324.16 × 3,330.79
  4. Step 4: Simplify right side
    12,215.27x = 61,033,874.75
  5. Step 5: Solve for x
    x = 61,033,874.75/12,215.27
  6. Step 6: Final answer
    x = 4,996.52

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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.