Home / 19,183.42-28,763.61-7,930.09

Finding the Fourth Proportional to 19,183.42, 28,763.61 and 7,930.09

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Solution

The fourth proportional to 19,183.42, 28,763.61 and 7,930.09 is: 11,890.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.42 : 28,763.61 = 7,930.09 : x
  2. Step 2: Convert to fraction form
    19,183.42/28,763.61 = 7,930.09/x
  3. Step 3: Cross multiply
    19,183.42x = 28,763.61 × 7,930.09
  4. Step 4: Simplify right side
    19,183.42x = 228,098,016.02
  5. Step 5: Solve for x
    x = 228,098,016.02/19,183.42
  6. Step 6: Final answer
    x = 11,890.37

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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.