Home / 7,992.92-11,020.26-6,220.76

Finding the Fourth Proportional to 7,992.92, 11,020.26 and 6,220.76

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Solution

The fourth proportional to 7,992.92, 11,020.26 and 6,220.76 is: 8,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.92 : 11,020.26 = 6,220.76 : x
  2. Step 2: Convert to fraction form
    7,992.92/11,020.26 = 6,220.76/x
  3. Step 3: Cross multiply
    7,992.92x = 11,020.26 × 6,220.76
  4. Step 4: Simplify right side
    7,992.92x = 68,554,392.60
  5. Step 5: Solve for x
    x = 68,554,392.60/7,992.92
  6. Step 6: Final answer
    x = 8,576.89

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Half scale
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Double scale
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Similar ratio
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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.