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Finding the Fourth Proportional to 12,216.84, 18,326 and 3,452.41

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Solution

The fourth proportional to 12,216.84, 18,326 and 3,452.41 is: 5,178.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.84 : 18,326 = 3,452.41 : x
  2. Step 2: Convert to fraction form
    12,216.84/18,326 = 3,452.41/x
  3. Step 3: Cross multiply
    12,216.84x = 18,326 × 3,452.41
  4. Step 4: Simplify right side
    12,216.84x = 63,268,865.66
  5. Step 5: Solve for x
    x = 63,268,865.66/12,216.84
  6. Step 6: Final answer
    x = 5,178.82

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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.