Home / 9,413.03-12,989.97-5,221.28

Finding the Fourth Proportional to 9,413.03, 12,989.97 and 5,221.28

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Solution

The fourth proportional to 9,413.03, 12,989.97 and 5,221.28 is: 7,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.03 : 12,989.97 = 5,221.28 : x
  2. Step 2: Convert to fraction form
    9,413.03/12,989.97 = 5,221.28/x
  3. Step 3: Cross multiply
    9,413.03x = 12,989.97 × 5,221.28
  4. Step 4: Simplify right side
    9,413.03x = 67,824,205.61
  5. Step 5: Solve for x
    x = 67,824,205.61/9,413.03
  6. Step 6: Final answer
    x = 7,205.36

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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.