Home / 11,287.86-16,932.33-5,449.38

Finding the Fourth Proportional to 11,287.86, 16,932.33 and 5,449.38

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Solution

The fourth proportional to 11,287.86, 16,932.33 and 5,449.38 is: 8,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.86 : 16,932.33 = 5,449.38 : x
  2. Step 2: Convert to fraction form
    11,287.86/16,932.33 = 5,449.38/x
  3. Step 3: Cross multiply
    11,287.86x = 16,932.33 × 5,449.38
  4. Step 4: Simplify right side
    11,287.86x = 92,270,700.46
  5. Step 5: Solve for x
    x = 92,270,700.46/11,287.86
  6. Step 6: Final answer
    x = 8,174.33

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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.