Home / 11,428.45-17,136.30-3,528.73

Finding the Fourth Proportional to 11,428.45, 17,136.30 and 3,528.73

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Solution

The fourth proportional to 11,428.45, 17,136.30 and 3,528.73 is: 5,291.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.45 : 17,136.30 = 3,528.73 : x
  2. Step 2: Convert to fraction form
    11,428.45/17,136.30 = 3,528.73/x
  3. Step 3: Cross multiply
    11,428.45x = 17,136.30 × 3,528.73
  4. Step 4: Simplify right side
    11,428.45x = 60,469,375.90
  5. Step 5: Solve for x
    x = 60,469,375.90/11,428.45
  6. Step 6: Final answer
    x = 5,291.13

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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.