Home / 11,939.22-17,907.40-3,174.80

Finding the Fourth Proportional to 11,939.22, 17,907.40 and 3,174.80

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Solution

The fourth proportional to 11,939.22, 17,907.40 and 3,174.80 is: 4,761.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.22 : 17,907.40 = 3,174.80 : x
  2. Step 2: Convert to fraction form
    11,939.22/17,907.40 = 3,174.80/x
  3. Step 3: Cross multiply
    11,939.22x = 17,907.40 × 3,174.80
  4. Step 4: Simplify right side
    11,939.22x = 56,852,413.52
  5. Step 5: Solve for x
    x = 56,852,413.52/11,939.22
  6. Step 6: Final answer
    x = 4,761.82

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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.