Home / 18,789.64-28,183.48-6,309.92

Finding the Fourth Proportional to 18,789.64, 28,183.48 and 6,309.92

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Solution

The fourth proportional to 18,789.64, 28,183.48 and 6,309.92 is: 9,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.64 : 28,183.48 = 6,309.92 : x
  2. Step 2: Convert to fraction form
    18,789.64/28,183.48 = 6,309.92/x
  3. Step 3: Cross multiply
    18,789.64x = 28,183.48 × 6,309.92
  4. Step 4: Simplify right side
    18,789.64x = 177,835,558.81
  5. Step 5: Solve for x
    x = 177,835,558.81/18,789.64
  6. Step 6: Final answer
    x = 9,464.56

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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.