Home / 12,091.28-18,136.47-3,325.97

Finding the Fourth Proportional to 12,091.28, 18,136.47 and 3,325.97

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Solution

The fourth proportional to 12,091.28, 18,136.47 and 3,325.97 is: 4,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.28 : 18,136.47 = 3,325.97 : x
  2. Step 2: Convert to fraction form
    12,091.28/18,136.47 = 3,325.97/x
  3. Step 3: Cross multiply
    12,091.28x = 18,136.47 × 3,325.97
  4. Step 4: Simplify right side
    12,091.28x = 60,321,355.13
  5. Step 5: Solve for x
    x = 60,321,355.13/12,091.28
  6. Step 6: Final answer
    x = 4,988.83

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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.