Home / 7,413.66-11,120.10-1,867

Finding the Fourth Proportional to 7,413.66, 11,120.10 and 1,867

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Solution

The fourth proportional to 7,413.66, 11,120.10 and 1,867 is: 2,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.66 : 11,120.10 = 1,867 : x
  2. Step 2: Convert to fraction form
    7,413.66/11,120.10 = 1,867/x
  3. Step 3: Cross multiply
    7,413.66x = 11,120.10 × 1,867
  4. Step 4: Simplify right side
    7,413.66x = 20,761,226.70
  5. Step 5: Solve for x
    x = 20,761,226.70/7,413.66
  6. Step 6: Final answer
    x = 2,800.40

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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.