Home / 11,660.10-16,089.66-6,814.92

Finding the Fourth Proportional to 11,660.10, 16,089.66 and 6,814.92

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Solution

The fourth proportional to 11,660.10, 16,089.66 and 6,814.92 is: 9,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.10 : 16,089.66 = 6,814.92 : x
  2. Step 2: Convert to fraction form
    11,660.10/16,089.66 = 6,814.92/x
  3. Step 3: Cross multiply
    11,660.10x = 16,089.66 × 6,814.92
  4. Step 4: Simplify right side
    11,660.10x = 109,649,745.73
  5. Step 5: Solve for x
    x = 109,649,745.73/11,660.10
  6. Step 6: Final answer
    x = 9,403.84

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Half scale
Find fourth proportional to 23,320.20, 32,179.32 and 13,629.84
Double scale
Find fourth proportional to 11,661.10, 16,091.04 and 6,815.92
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.