Home / 8,121.06-11,207.11-4,395.06

Finding the Fourth Proportional to 8,121.06, 11,207.11 and 4,395.06

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Solution

The fourth proportional to 8,121.06, 11,207.11 and 4,395.06 is: 6,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.06 : 11,207.11 = 4,395.06 : x
  2. Step 2: Convert to fraction form
    8,121.06/11,207.11 = 4,395.06/x
  3. Step 3: Cross multiply
    8,121.06x = 11,207.11 × 4,395.06
  4. Step 4: Simplify right side
    8,121.06x = 49,255,920.88
  5. Step 5: Solve for x
    x = 49,255,920.88/8,121.06
  6. Step 6: Final answer
    x = 6,065.21

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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.