Home / 16,217.44-22,379.62-9,143.80

Finding the Fourth Proportional to 16,217.44, 22,379.62 and 9,143.80

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Solution

The fourth proportional to 16,217.44, 22,379.62 and 9,143.80 is: 12,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,217.44 : 22,379.62 = 9,143.80 : x
  2. Step 2: Convert to fraction form
    16,217.44/22,379.62 = 9,143.80/x
  3. Step 3: Cross multiply
    16,217.44x = 22,379.62 × 9,143.80
  4. Step 4: Simplify right side
    16,217.44x = 204,634,769.36
  5. Step 5: Solve for x
    x = 204,634,769.36/16,217.44
  6. Step 6: Final answer
    x = 12,618.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.