Home / 8,119.05-12,177.75-2,275.71

Finding the Fourth Proportional to 8,119.05, 12,177.75 and 2,275.71

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Solution

The fourth proportional to 8,119.05, 12,177.75 and 2,275.71 is: 3,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.05 : 12,177.75 = 2,275.71 : x
  2. Step 2: Convert to fraction form
    8,119.05/12,177.75 = 2,275.71/x
  3. Step 3: Cross multiply
    8,119.05x = 12,177.75 × 2,275.71
  4. Step 4: Simplify right side
    8,119.05x = 27,713,027.45
  5. Step 5: Solve for x
    x = 27,713,027.45/8,119.05
  6. Step 6: Final answer
    x = 3,413.33

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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.