Home / 8,123.44-12,183.36-2,280.64

Finding the Fourth Proportional to 8,123.44, 12,183.36 and 2,280.64

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Solution

The fourth proportional to 8,123.44, 12,183.36 and 2,280.64 is: 3,420.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.44 : 12,183.36 = 2,280.64 : x
  2. Step 2: Convert to fraction form
    8,123.44/12,183.36 = 2,280.64/x
  3. Step 3: Cross multiply
    8,123.44x = 12,183.36 × 2,280.64
  4. Step 4: Simplify right side
    8,123.44x = 27,785,858.15
  5. Step 5: Solve for x
    x = 27,785,858.15/8,123.44
  6. Step 6: Final answer
    x = 3,420.45

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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.