Home / 18,183.33-27,274.86-12,478.59

Finding the Fourth Proportional to 18,183.33, 27,274.86 and 12,478.59

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Solution

The fourth proportional to 18,183.33, 27,274.86 and 12,478.59 is: 18,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,183.33 : 27,274.86 = 12,478.59 : x
  2. Step 2: Convert to fraction form
    18,183.33/27,274.86 = 12,478.59/x
  3. Step 3: Cross multiply
    18,183.33x = 27,274.86 × 12,478.59
  4. Step 4: Simplify right side
    18,183.33x = 340,351,795.25
  5. Step 5: Solve for x
    x = 340,351,795.25/18,183.33
  6. Step 6: Final answer
    x = 18,717.79

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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.