Home / 8,123.19-12,183.71-2,577.09

Finding the Fourth Proportional to 8,123.19, 12,183.71 and 2,577.09

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Solution

The fourth proportional to 8,123.19, 12,183.71 and 2,577.09 is: 3,865.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.19 : 12,183.71 = 2,577.09 : x
  2. Step 2: Convert to fraction form
    8,123.19/12,183.71 = 2,577.09/x
  3. Step 3: Cross multiply
    8,123.19x = 12,183.71 × 2,577.09
  4. Step 4: Simplify right side
    8,123.19x = 31,398,504.32
  5. Step 5: Solve for x
    x = 31,398,504.32/8,123.19
  6. Step 6: Final answer
    x = 3,865.29

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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.