Home / 12,181.37-18,269.98-3,414.26

Finding the Fourth Proportional to 12,181.37, 18,269.98 and 3,414.26

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Solution

The fourth proportional to 12,181.37, 18,269.98 and 3,414.26 is: 5,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.37 : 18,269.98 = 3,414.26 : x
  2. Step 2: Convert to fraction form
    12,181.37/18,269.98 = 3,414.26/x
  3. Step 3: Cross multiply
    12,181.37x = 18,269.98 × 3,414.26
  4. Step 4: Simplify right side
    12,181.37x = 62,378,499.05
  5. Step 5: Solve for x
    x = 62,378,499.05/12,181.37
  6. Step 6: Final answer
    x = 5,120.81

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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.