Home / 18,789.62-28,183.55-7,693.56

Finding the Fourth Proportional to 18,789.62, 28,183.55 and 7,693.56

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Solution

The fourth proportional to 18,789.62, 28,183.55 and 7,693.56 is: 11,539.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.62 : 28,183.55 = 7,693.56 : x
  2. Step 2: Convert to fraction form
    18,789.62/28,183.55 = 7,693.56/x
  3. Step 3: Cross multiply
    18,789.62x = 28,183.55 × 7,693.56
  4. Step 4: Simplify right side
    18,789.62x = 216,831,794.47
  5. Step 5: Solve for x
    x = 216,831,794.47/18,789.62
  6. Step 6: Final answer
    x = 11,539.98

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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.