Home / 9,175.31-12,664.22-5,198.68

Finding the Fourth Proportional to 9,175.31, 12,664.22 and 5,198.68

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Solution

The fourth proportional to 9,175.31, 12,664.22 and 5,198.68 is: 7,175.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.31 : 12,664.22 = 5,198.68 : x
  2. Step 2: Convert to fraction form
    9,175.31/12,664.22 = 5,198.68/x
  3. Step 3: Cross multiply
    9,175.31x = 12,664.22 × 5,198.68
  4. Step 4: Simplify right side
    9,175.31x = 65,837,217.07
  5. Step 5: Solve for x
    x = 65,837,217.07/9,175.31
  6. Step 6: Final answer
    x = 7,175.48

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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.