Home / 18,786.49-28,192.04-7,099.71

Finding the Fourth Proportional to 18,786.49, 28,192.04 and 7,099.71

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Solution

The fourth proportional to 18,786.49, 28,192.04 and 7,099.71 is: 10,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.49 : 28,192.04 = 7,099.71 : x
  2. Step 2: Convert to fraction form
    18,786.49/28,192.04 = 7,099.71/x
  3. Step 3: Cross multiply
    18,786.49x = 28,192.04 × 7,099.71
  4. Step 4: Simplify right side
    18,786.49x = 200,155,131.85
  5. Step 5: Solve for x
    x = 200,155,131.85/18,786.49
  6. Step 6: Final answer
    x = 10,654.21

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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.