Home / 9,413.44-12,990.84-5,222.08

Finding the Fourth Proportional to 9,413.44, 12,990.84 and 5,222.08

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Solution

The fourth proportional to 9,413.44, 12,990.84 and 5,222.08 is: 7,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.44 : 12,990.84 = 5,222.08 : x
  2. Step 2: Convert to fraction form
    9,413.44/12,990.84 = 5,222.08/x
  3. Step 3: Cross multiply
    9,413.44x = 12,990.84 × 5,222.08
  4. Step 4: Simplify right side
    9,413.44x = 67,839,205.75
  5. Step 5: Solve for x
    x = 67,839,205.75/9,413.44
  6. Step 6: Final answer
    x = 7,206.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.