Home / 12,124.68-18,183.78-3,360.09

Finding the Fourth Proportional to 12,124.68, 18,183.78 and 3,360.09

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Solution

The fourth proportional to 12,124.68, 18,183.78 and 3,360.09 is: 5,039.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.68 : 18,183.78 = 3,360.09 : x
  2. Step 2: Convert to fraction form
    12,124.68/18,183.78 = 3,360.09/x
  3. Step 3: Cross multiply
    12,124.68x = 18,183.78 × 3,360.09
  4. Step 4: Simplify right side
    12,124.68x = 61,099,137.34
  5. Step 5: Solve for x
    x = 61,099,137.34/12,124.68
  6. Step 6: Final answer
    x = 5,039.24

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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.