Home / 19,183.62-28,765.65-8,786.46

Finding the Fourth Proportional to 19,183.62, 28,765.65 and 8,786.46

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Solution

The fourth proportional to 19,183.62, 28,765.65 and 8,786.46 is: 13,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.62 : 28,765.65 = 8,786.46 : x
  2. Step 2: Convert to fraction form
    19,183.62/28,765.65 = 8,786.46/x
  3. Step 3: Cross multiply
    19,183.62x = 28,765.65 × 8,786.46
  4. Step 4: Simplify right side
    19,183.62x = 252,748,233.10
  5. Step 5: Solve for x
    x = 252,748,233.10/19,183.62
  6. Step 6: Final answer
    x = 13,175.21

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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.