Home / 12,122.29-18,183.30-3,356.88

Finding the Fourth Proportional to 12,122.29, 18,183.30 and 3,356.88

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Solution

The fourth proportional to 12,122.29, 18,183.30 and 3,356.88 is: 5,035.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.29 : 18,183.30 = 3,356.88 : x
  2. Step 2: Convert to fraction form
    12,122.29/18,183.30 = 3,356.88/x
  3. Step 3: Cross multiply
    12,122.29x = 18,183.30 × 3,356.88
  4. Step 4: Simplify right side
    12,122.29x = 61,039,156.10
  5. Step 5: Solve for x
    x = 61,039,156.10/12,122.29
  6. Step 6: Final answer
    x = 5,035.28

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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.