Home / 9,177.72-12,665.22-5,198.44

Finding the Fourth Proportional to 9,177.72, 12,665.22 and 5,198.44

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Solution

The fourth proportional to 9,177.72, 12,665.22 and 5,198.44 is: 7,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.72 : 12,665.22 = 5,198.44 : x
  2. Step 2: Convert to fraction form
    9,177.72/12,665.22 = 5,198.44/x
  3. Step 3: Cross multiply
    9,177.72x = 12,665.22 × 5,198.44
  4. Step 4: Simplify right side
    9,177.72x = 65,839,386.26
  5. Step 5: Solve for x
    x = 65,839,386.26/9,177.72
  6. Step 6: Final answer
    x = 7,173.83

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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.