Home / 8,331.80-12,497.70-3,136.60

Finding the Fourth Proportional to 8,331.80, 12,497.70 and 3,136.60

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Solution

The fourth proportional to 8,331.80, 12,497.70 and 3,136.60 is: 4,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.80 : 12,497.70 = 3,136.60 : x
  2. Step 2: Convert to fraction form
    8,331.80/12,497.70 = 3,136.60/x
  3. Step 3: Cross multiply
    8,331.80x = 12,497.70 × 3,136.60
  4. Step 4: Simplify right side
    8,331.80x = 39,200,285.82
  5. Step 5: Solve for x
    x = 39,200,285.82/8,331.80
  6. Step 6: Final answer
    x = 4,704.90

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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.