Home / 18,786.14-28,181.09-6,943.02

Finding the Fourth Proportional to 18,786.14, 28,181.09 and 6,943.02

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Solution

The fourth proportional to 18,786.14, 28,181.09 and 6,943.02 is: 10,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.14 : 28,181.09 = 6,943.02 : x
  2. Step 2: Convert to fraction form
    18,786.14/28,181.09 = 6,943.02/x
  3. Step 3: Cross multiply
    18,786.14x = 28,181.09 × 6,943.02
  4. Step 4: Simplify right side
    18,786.14x = 195,661,836.78
  5. Step 5: Solve for x
    x = 195,661,836.78/18,786.14
  6. Step 6: Final answer
    x = 10,415.23

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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.