Home / 11,855.16-17,769.87-5,272.29

Finding the Fourth Proportional to 11,855.16, 17,769.87 and 5,272.29

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Solution

The fourth proportional to 11,855.16, 17,769.87 and 5,272.29 is: 7,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.16 : 17,769.87 = 5,272.29 : x
  2. Step 2: Convert to fraction form
    11,855.16/17,769.87 = 5,272.29/x
  3. Step 3: Cross multiply
    11,855.16x = 17,769.87 × 5,272.29
  4. Step 4: Simplify right side
    11,855.16x = 93,687,907.90
  5. Step 5: Solve for x
    x = 93,687,907.90/11,855.16
  6. Step 6: Final answer
    x = 7,902.71

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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.