Home / 8,939.06-13,413.71-3,320.63

Finding the Fourth Proportional to 8,939.06, 13,413.71 and 3,320.63

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Solution

The fourth proportional to 8,939.06, 13,413.71 and 3,320.63 is: 4,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.06 : 13,413.71 = 3,320.63 : x
  2. Step 2: Convert to fraction form
    8,939.06/13,413.71 = 3,320.63/x
  3. Step 3: Cross multiply
    8,939.06x = 13,413.71 × 3,320.63
  4. Step 4: Simplify right side
    8,939.06x = 44,542,020.63
  5. Step 5: Solve for x
    x = 44,542,020.63/8,939.06
  6. Step 6: Final answer
    x = 4,982.85

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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.