Home / 12,429.63-18,644.33-3,664.41

Finding the Fourth Proportional to 12,429.63, 18,644.33 and 3,664.41

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Solution

The fourth proportional to 12,429.63, 18,644.33 and 3,664.41 is: 5,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.63 : 18,644.33 = 3,664.41 : x
  2. Step 2: Convert to fraction form
    12,429.63/18,644.33 = 3,664.41/x
  3. Step 3: Cross multiply
    12,429.63x = 18,644.33 × 3,664.41
  4. Step 4: Simplify right side
    12,429.63x = 68,320,450.97
  5. Step 5: Solve for x
    x = 68,320,450.97/12,429.63
  6. Step 6: Final answer
    x = 5,496.58

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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.