Home / 13,183.44-18,190.62-7,876.32

Finding the Fourth Proportional to 13,183.44, 18,190.62 and 7,876.32

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Solution

The fourth proportional to 13,183.44, 18,190.62 and 7,876.32 is: 10,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.44 : 18,190.62 = 7,876.32 : x
  2. Step 2: Convert to fraction form
    13,183.44/18,190.62 = 7,876.32/x
  3. Step 3: Cross multiply
    13,183.44x = 18,190.62 × 7,876.32
  4. Step 4: Simplify right side
    13,183.44x = 143,275,144.12
  5. Step 5: Solve for x
    x = 143,275,144.12/13,183.44
  6. Step 6: Final answer
    x = 10,867.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.