Home / 8,945.10-13,413.33-3,318.89

Finding the Fourth Proportional to 8,945.10, 13,413.33 and 3,318.89

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Solution

The fourth proportional to 8,945.10, 13,413.33 and 3,318.89 is: 4,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.10 : 13,413.33 = 3,318.89 : x
  2. Step 2: Convert to fraction form
    8,945.10/13,413.33 = 3,318.89/x
  3. Step 3: Cross multiply
    8,945.10x = 13,413.33 × 3,318.89
  4. Step 4: Simplify right side
    8,945.10x = 44,517,299.74
  5. Step 5: Solve for x
    x = 44,517,299.74/8,945.10
  6. Step 6: Final answer
    x = 4,976.72

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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.