Home / 12,122.55-18,183.83-3,356.73

Finding the Fourth Proportional to 12,122.55, 18,183.83 and 3,356.73

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Solution

The fourth proportional to 12,122.55, 18,183.83 and 3,356.73 is: 5,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.55 : 18,183.83 = 3,356.73 : x
  2. Step 2: Convert to fraction form
    12,122.55/18,183.83 = 3,356.73/x
  3. Step 3: Cross multiply
    12,122.55x = 18,183.83 × 3,356.73
  4. Step 4: Simplify right side
    12,122.55x = 61,038,190.89
  5. Step 5: Solve for x
    x = 61,038,190.89/12,122.55
  6. Step 6: Final answer
    x = 5,035.10

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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.