Home / 19,183.44-28,736.28-9,930

Finding the Fourth Proportional to 19,183.44, 28,736.28 and 9,930

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Solution

The fourth proportional to 19,183.44, 28,736.28 and 9,930 is: 14,874.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.44 : 28,736.28 = 9,930 : x
  2. Step 2: Convert to fraction form
    19,183.44/28,736.28 = 9,930/x
  3. Step 3: Cross multiply
    19,183.44x = 28,736.28 × 9,930
  4. Step 4: Simplify right side
    19,183.44x = 285,351,260.40
  5. Step 5: Solve for x
    x = 285,351,260.40/19,183.44
  6. Step 6: Final answer
    x = 14,874.87

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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.