Home / 8,121.82-11,208.10-4,395.82

Finding the Fourth Proportional to 8,121.82, 11,208.10 and 4,395.82

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Solution

The fourth proportional to 8,121.82, 11,208.10 and 4,395.82 is: 6,066.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.82 : 11,208.10 = 4,395.82 : x
  2. Step 2: Convert to fraction form
    8,121.82/11,208.10 = 4,395.82/x
  3. Step 3: Cross multiply
    8,121.82x = 11,208.10 × 4,395.82
  4. Step 4: Simplify right side
    8,121.82x = 49,268,734.10
  5. Step 5: Solve for x
    x = 49,268,734.10/8,121.82
  6. Step 6: Final answer
    x = 6,066.22

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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.