Home / 12,122.36-18,183.95-3,356.54

Finding the Fourth Proportional to 12,122.36, 18,183.95 and 3,356.54

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Solution

The fourth proportional to 12,122.36, 18,183.95 and 3,356.54 is: 5,034.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.36 : 18,183.95 = 3,356.54 : x
  2. Step 2: Convert to fraction form
    12,122.36/18,183.95 = 3,356.54/x
  3. Step 3: Cross multiply
    12,122.36x = 18,183.95 × 3,356.54
  4. Step 4: Simplify right side
    12,122.36x = 61,035,155.53
  5. Step 5: Solve for x
    x = 61,035,155.53/12,122.36
  6. Step 6: Final answer
    x = 5,034.92

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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.