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Finding the Fourth Proportional to 8,994.85, 12,413.79 and 6,722.25

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Solution

The fourth proportional to 8,994.85, 12,413.79 and 6,722.25 is: 9,277.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.85 : 12,413.79 = 6,722.25 : x
  2. Step 2: Convert to fraction form
    8,994.85/12,413.79 = 6,722.25/x
  3. Step 3: Cross multiply
    8,994.85x = 12,413.79 × 6,722.25
  4. Step 4: Simplify right side
    8,994.85x = 83,448,553.28
  5. Step 5: Solve for x
    x = 83,448,553.28/8,994.85
  6. Step 6: Final answer
    x = 9,277.37

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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.