Home / 9,413.97-12,991.68-5,223.03

Finding the Fourth Proportional to 9,413.97, 12,991.68 and 5,223.03

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Solution

The fourth proportional to 9,413.97, 12,991.68 and 5,223.03 is: 7,208.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.97 : 12,991.68 = 5,223.03 : x
  2. Step 2: Convert to fraction form
    9,413.97/12,991.68 = 5,223.03/x
  3. Step 3: Cross multiply
    9,413.97x = 12,991.68 × 5,223.03
  4. Step 4: Simplify right side
    9,413.97x = 67,855,934.39
  5. Step 5: Solve for x
    x = 67,855,934.39/9,413.97
  6. Step 6: Final answer
    x = 7,208.00

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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.