Home / 11,996.57-18,002.89-4,205.39

Finding the Fourth Proportional to 11,996.57, 18,002.89 and 4,205.39

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Solution

The fourth proportional to 11,996.57, 18,002.89 and 4,205.39 is: 6,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.57 : 18,002.89 = 4,205.39 : x
  2. Step 2: Convert to fraction form
    11,996.57/18,002.89 = 4,205.39/x
  3. Step 3: Cross multiply
    11,996.57x = 18,002.89 × 4,205.39
  4. Step 4: Simplify right side
    11,996.57x = 75,709,083.56
  5. Step 5: Solve for x
    x = 75,709,083.56/11,996.57
  6. Step 6: Final answer
    x = 6,310.89

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1.5x scale

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.