Home / 7,126.80-10,696.74-3,843.12

Finding the Fourth Proportional to 7,126.80, 10,696.74 and 3,843.12

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Solution

The fourth proportional to 7,126.80, 10,696.74 and 3,843.12 is: 5,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.80 : 10,696.74 = 3,843.12 : x
  2. Step 2: Convert to fraction form
    7,126.80/10,696.74 = 3,843.12/x
  3. Step 3: Cross multiply
    7,126.80x = 10,696.74 × 3,843.12
  4. Step 4: Simplify right side
    7,126.80x = 41,108,855.43
  5. Step 5: Solve for x
    x = 41,108,855.43/7,126.80
  6. Step 6: Final answer
    x = 5,768.21

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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.