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Finding the Fourth Proportional to 8,136.92, 11,236.92 and 6,951.08

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Solution

The fourth proportional to 8,136.92, 11,236.92 and 6,951.08 is: 9,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.92 : 11,236.92 = 6,951.08 : x
  2. Step 2: Convert to fraction form
    8,136.92/11,236.92 = 6,951.08/x
  3. Step 3: Cross multiply
    8,136.92x = 11,236.92 × 6,951.08
  4. Step 4: Simplify right side
    8,136.92x = 78,108,729.87
  5. Step 5: Solve for x
    x = 78,108,729.87/8,136.92
  6. Step 6: Final answer
    x = 9,599.30

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Half scale
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Double scale
Find fourth proportional to 8,137.92, 11,238.30 and 6,952.08
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.