Home / 19,183.58-28,765.56-8,786.42

Finding the Fourth Proportional to 19,183.58, 28,765.56 and 8,786.42

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Solution

The fourth proportional to 19,183.58, 28,765.56 and 8,786.42 is: 13,175.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.58 : 28,765.56 = 8,786.42 : x
  2. Step 2: Convert to fraction form
    19,183.58/28,765.56 = 8,786.42/x
  3. Step 3: Cross multiply
    19,183.58x = 28,765.56 × 8,786.42
  4. Step 4: Simplify right side
    19,183.58x = 252,746,291.70
  5. Step 5: Solve for x
    x = 252,746,291.70/19,183.58
  6. Step 6: Final answer
    x = 13,175.14

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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.