Home / 12,622.75-18,934.49-3,388.75

Finding the Fourth Proportional to 12,622.75, 18,934.49 and 3,388.75

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Solution

The fourth proportional to 12,622.75, 18,934.49 and 3,388.75 is: 5,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.75 : 18,934.49 = 3,388.75 : x
  2. Step 2: Convert to fraction form
    12,622.75/18,934.49 = 3,388.75/x
  3. Step 3: Cross multiply
    12,622.75x = 18,934.49 × 3,388.75
  4. Step 4: Simplify right side
    12,622.75x = 64,164,252.99
  5. Step 5: Solve for x
    x = 64,164,252.99/12,622.75
  6. Step 6: Final answer
    x = 5,083.22

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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.