Home / 8,122.56-12,183.62-5,491.26

Finding the Fourth Proportional to 8,122.56, 12,183.62 and 5,491.26

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Solution

The fourth proportional to 8,122.56, 12,183.62 and 5,491.26 is: 8,236.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.56 : 12,183.62 = 5,491.26 : x
  2. Step 2: Convert to fraction form
    8,122.56/12,183.62 = 5,491.26/x
  3. Step 3: Cross multiply
    8,122.56x = 12,183.62 × 5,491.26
  4. Step 4: Simplify right side
    8,122.56x = 66,903,425.16
  5. Step 5: Solve for x
    x = 66,903,425.16/8,122.56
  6. Step 6: Final answer
    x = 8,236.74

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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.