Home / 7,279.72-10,022.97-6,614.58

Finding the Fourth Proportional to 7,279.72, 10,022.97 and 6,614.58

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Solution

The fourth proportional to 7,279.72, 10,022.97 and 6,614.58 is: 9,107.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.72 : 10,022.97 = 6,614.58 : x
  2. Step 2: Convert to fraction form
    7,279.72/10,022.97 = 6,614.58/x
  3. Step 3: Cross multiply
    7,279.72x = 10,022.97 × 6,614.58
  4. Step 4: Simplify right side
    7,279.72x = 66,297,736.90
  5. Step 5: Solve for x
    x = 66,297,736.90/7,279.72
  6. Step 6: Final answer
    x = 9,107.18

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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.