Home / 12,183.74-18,271.80-4,786.22

Finding the Fourth Proportional to 12,183.74, 18,271.80 and 4,786.22

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Solution

The fourth proportional to 12,183.74, 18,271.80 and 4,786.22 is: 7,177.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.74 : 18,271.80 = 4,786.22 : x
  2. Step 2: Convert to fraction form
    12,183.74/18,271.80 = 4,786.22/x
  3. Step 3: Cross multiply
    12,183.74x = 18,271.80 × 4,786.22
  4. Step 4: Simplify right side
    12,183.74x = 87,452,854.60
  5. Step 5: Solve for x
    x = 87,452,854.60/12,183.74
  6. Step 6: Final answer
    x = 7,177.83

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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.