Home / 12,546.68-18,821.81-4,111.38

Finding the Fourth Proportional to 12,546.68, 18,821.81 and 4,111.38

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Solution

The fourth proportional to 12,546.68, 18,821.81 and 4,111.38 is: 6,167.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.68 : 18,821.81 = 4,111.38 : x
  2. Step 2: Convert to fraction form
    12,546.68/18,821.81 = 4,111.38/x
  3. Step 3: Cross multiply
    12,546.68x = 18,821.81 × 4,111.38
  4. Step 4: Simplify right side
    12,546.68x = 77,383,522.06
  5. Step 5: Solve for x
    x = 77,383,522.06/12,546.68
  6. Step 6: Final answer
    x = 6,167.65

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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.