Home / 11,717.30-16,170.07-8,365.81

Finding the Fourth Proportional to 11,717.30, 16,170.07 and 8,365.81

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Solution

The fourth proportional to 11,717.30, 16,170.07 and 8,365.81 is: 11,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.30 : 16,170.07 = 8,365.81 : x
  2. Step 2: Convert to fraction form
    11,717.30/16,170.07 = 8,365.81/x
  3. Step 3: Cross multiply
    11,717.30x = 16,170.07 × 8,365.81
  4. Step 4: Simplify right side
    11,717.30x = 135,275,696.02
  5. Step 5: Solve for x
    x = 135,275,696.02/11,717.30
  6. Step 6: Final answer
    x = 11,544.95

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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.