Home / 8,121.94-11,208.27-4,395.94

Finding the Fourth Proportional to 8,121.94, 11,208.27 and 4,395.94

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Solution

The fourth proportional to 8,121.94, 11,208.27 and 4,395.94 is: 6,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.94 : 11,208.27 = 4,395.94 : x
  2. Step 2: Convert to fraction form
    8,121.94/11,208.27 = 4,395.94/x
  3. Step 3: Cross multiply
    8,121.94x = 11,208.27 × 4,395.94
  4. Step 4: Simplify right side
    8,121.94x = 49,270,870.89
  5. Step 5: Solve for x
    x = 49,270,870.89/8,121.94
  6. Step 6: Final answer
    x = 6,066.39

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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.