Home / 9,177.23-12,664.32-5,198.69

Finding the Fourth Proportional to 9,177.23, 12,664.32 and 5,198.69

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Solution

The fourth proportional to 9,177.23, 12,664.32 and 5,198.69 is: 7,174.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.23 : 12,664.32 = 5,198.69 : x
  2. Step 2: Convert to fraction form
    9,177.23/12,664.32 = 5,198.69/x
  3. Step 3: Cross multiply
    9,177.23x = 12,664.32 × 5,198.69
  4. Step 4: Simplify right side
    9,177.23x = 65,837,885.91
  5. Step 5: Solve for x
    x = 65,837,885.91/9,177.23
  6. Step 6: Final answer
    x = 7,174.05

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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.