Home / 13,413.92-20,121.06-4,054.01

Finding the Fourth Proportional to 13,413.92, 20,121.06 and 4,054.01

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Solution

The fourth proportional to 13,413.92, 20,121.06 and 4,054.01 is: 6,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.92 : 20,121.06 = 4,054.01 : x
  2. Step 2: Convert to fraction form
    13,413.92/20,121.06 = 4,054.01/x
  3. Step 3: Cross multiply
    13,413.92x = 20,121.06 × 4,054.01
  4. Step 4: Simplify right side
    13,413.92x = 81,570,978.45
  5. Step 5: Solve for x
    x = 81,570,978.45/13,413.92
  6. Step 6: Final answer
    x = 6,081.07

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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.