Home / 15,183.20-22,735-12,205.80

Finding the Fourth Proportional to 15,183.20, 22,735 and 12,205.80

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Solution

The fourth proportional to 15,183.20, 22,735 and 12,205.80 is: 18,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.20 : 22,735 = 12,205.80 : x
  2. Step 2: Convert to fraction form
    15,183.20/22,735 = 12,205.80/x
  3. Step 3: Cross multiply
    15,183.20x = 22,735 × 12,205.80
  4. Step 4: Simplify right side
    15,183.20x = 277,498,863
  5. Step 5: Solve for x
    x = 277,498,863/15,183.20
  6. Step 6: Final answer
    x = 18,276.70

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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.