Home / 8,277.42-12,413.16-3,278.64

Finding the Fourth Proportional to 8,277.42, 12,413.16 and 3,278.64

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Solution

The fourth proportional to 8,277.42, 12,413.16 and 3,278.64 is: 4,916.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,277.42 : 12,413.16 = 3,278.64 : x
  2. Step 2: Convert to fraction form
    8,277.42/12,413.16 = 3,278.64/x
  3. Step 3: Cross multiply
    8,277.42x = 12,413.16 × 3,278.64
  4. Step 4: Simplify right side
    8,277.42x = 40,698,282.90
  5. Step 5: Solve for x
    x = 40,698,282.90/8,277.42
  6. Step 6: Final answer
    x = 4,916.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.