Home / 12,107.12-18,161.72-3,342.03

Finding the Fourth Proportional to 12,107.12, 18,161.72 and 3,342.03

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Solution

The fourth proportional to 12,107.12, 18,161.72 and 3,342.03 is: 5,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.12 : 18,161.72 = 3,342.03 : x
  2. Step 2: Convert to fraction form
    12,107.12/18,161.72 = 3,342.03/x
  3. Step 3: Cross multiply
    12,107.12x = 18,161.72 × 3,342.03
  4. Step 4: Simplify right side
    12,107.12x = 60,696,996.38
  5. Step 5: Solve for x
    x = 60,696,996.38/12,107.12
  6. Step 6: Final answer
    x = 5,013.33

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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.