Home / 9,177.92-12,665.26-5,199.38

Finding the Fourth Proportional to 9,177.92, 12,665.26 and 5,199.38

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Solution

The fourth proportional to 9,177.92, 12,665.26 and 5,199.38 is: 7,174.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.92 : 12,665.26 = 5,199.38 : x
  2. Step 2: Convert to fraction form
    9,177.92/12,665.26 = 5,199.38/x
  3. Step 3: Cross multiply
    9,177.92x = 12,665.26 × 5,199.38
  4. Step 4: Simplify right side
    9,177.92x = 65,851,499.54
  5. Step 5: Solve for x
    x = 65,851,499.54/9,177.92
  6. Step 6: Final answer
    x = 7,174.99

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Double scale
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Similar ratio
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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.