Home / 15,400.62-23,100.94-5,413.21

Finding the Fourth Proportional to 15,400.62, 23,100.94 and 5,413.21

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Solution

The fourth proportional to 15,400.62, 23,100.94 and 5,413.21 is: 8,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.62 : 23,100.94 = 5,413.21 : x
  2. Step 2: Convert to fraction form
    15,400.62/23,100.94 = 5,413.21/x
  3. Step 3: Cross multiply
    15,400.62x = 23,100.94 × 5,413.21
  4. Step 4: Simplify right side
    15,400.62x = 125,050,157.98
  5. Step 5: Solve for x
    x = 125,050,157.98/15,400.62
  6. Step 6: Final answer
    x = 8,119.81

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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.