Home / 12,122.53-18,183.78-3,803.28

Finding the Fourth Proportional to 12,122.53, 18,183.78 and 3,803.28

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Solution

The fourth proportional to 12,122.53, 18,183.78 and 3,803.28 is: 5,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.53 : 18,183.78 = 3,803.28 : x
  2. Step 2: Convert to fraction form
    12,122.53/18,183.78 = 3,803.28/x
  3. Step 3: Cross multiply
    12,122.53x = 18,183.78 × 3,803.28
  4. Step 4: Simplify right side
    12,122.53x = 69,157,915.88
  5. Step 5: Solve for x
    x = 69,157,915.88/12,122.53
  6. Step 6: Final answer
    x = 5,704.91

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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.