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Finding the Fourth Proportional to 8,147.54, 12,221.34 and 5,940.44

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Solution

The fourth proportional to 8,147.54, 12,221.34 and 5,940.44 is: 8,910.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.54 : 12,221.34 = 5,940.44 : x
  2. Step 2: Convert to fraction form
    8,147.54/12,221.34 = 5,940.44/x
  3. Step 3: Cross multiply
    8,147.54x = 12,221.34 × 5,940.44
  4. Step 4: Simplify right side
    8,147.54x = 72,600,136.99
  5. Step 5: Solve for x
    x = 72,600,136.99/8,147.54
  6. Step 6: Final answer
    x = 8,910.68

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,148.54, 12,222.84 and 5,941.44
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.