Home / 7,949.90-10,971.15-4,413.78

Finding the Fourth Proportional to 7,949.90, 10,971.15 and 4,413.78

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Solution

The fourth proportional to 7,949.90, 10,971.15 and 4,413.78 is: 6,091.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,949.90 : 10,971.15 = 4,413.78 : x
  2. Step 2: Convert to fraction form
    7,949.90/10,971.15 = 4,413.78/x
  3. Step 3: Cross multiply
    7,949.90x = 10,971.15 × 4,413.78
  4. Step 4: Simplify right side
    7,949.90x = 48,424,242.45
  5. Step 5: Solve for x
    x = 48,424,242.45/7,949.90
  6. Step 6: Final answer
    x = 6,091.18

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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.