Home / 8,136.78-12,191.23-4,441.60

Finding the Fourth Proportional to 8,136.78, 12,191.23 and 4,441.60

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Solution

The fourth proportional to 8,136.78, 12,191.23 and 4,441.60 is: 6,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.78 : 12,191.23 = 4,441.60 : x
  2. Step 2: Convert to fraction form
    8,136.78/12,191.23 = 4,441.60/x
  3. Step 3: Cross multiply
    8,136.78x = 12,191.23 × 4,441.60
  4. Step 4: Simplify right side
    8,136.78x = 54,148,484.00
  5. Step 5: Solve for x
    x = 54,148,484.00/8,136.78
  6. Step 6: Final answer
    x = 6,654.78

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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.