Home / 11,072.80-16,609.20-6,392.80

Finding the Fourth Proportional to 11,072.80, 16,609.20 and 6,392.80

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Solution

The fourth proportional to 11,072.80, 16,609.20 and 6,392.80 is: 9,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.80 : 16,609.20 = 6,392.80 : x
  2. Step 2: Convert to fraction form
    11,072.80/16,609.20 = 6,392.80/x
  3. Step 3: Cross multiply
    11,072.80x = 16,609.20 × 6,392.80
  4. Step 4: Simplify right side
    11,072.80x = 106,179,293.76
  5. Step 5: Solve for x
    x = 106,179,293.76/11,072.80
  6. Step 6: Final answer
    x = 9,589.20

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Similar ratio
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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.