Home / 12,183.92-18,284.52-4,392.80

Finding the Fourth Proportional to 12,183.92, 18,284.52 and 4,392.80

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Solution

The fourth proportional to 12,183.92, 18,284.52 and 4,392.80 is: 6,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.92 : 18,284.52 = 4,392.80 : x
  2. Step 2: Convert to fraction form
    12,183.92/18,284.52 = 4,392.80/x
  3. Step 3: Cross multiply
    12,183.92x = 18,284.52 × 4,392.80
  4. Step 4: Simplify right side
    12,183.92x = 80,320,239.46
  5. Step 5: Solve for x
    x = 80,320,239.46/12,183.92
  6. Step 6: Final answer
    x = 6,592.32

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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.