Home / 8,183.94-11,287.80-5,197.20

Finding the Fourth Proportional to 8,183.94, 11,287.80 and 5,197.20

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Solution

The fourth proportional to 8,183.94, 11,287.80 and 5,197.20 is: 7,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,183.94 : 11,287.80 = 5,197.20 : x
  2. Step 2: Convert to fraction form
    8,183.94/11,287.80 = 5,197.20/x
  3. Step 3: Cross multiply
    8,183.94x = 11,287.80 × 5,197.20
  4. Step 4: Simplify right side
    8,183.94x = 58,664,954.16
  5. Step 5: Solve for x
    x = 58,664,954.16/8,183.94
  6. Step 6: Final answer
    x = 7,168.30

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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.