Home / 11,164.32-16,758.78-6,489.60

Finding the Fourth Proportional to 11,164.32, 16,758.78 and 6,489.60

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Solution

The fourth proportional to 11,164.32, 16,758.78 and 6,489.60 is: 9,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.32 : 16,758.78 = 6,489.60 : x
  2. Step 2: Convert to fraction form
    11,164.32/16,758.78 = 6,489.60/x
  3. Step 3: Cross multiply
    11,164.32x = 16,758.78 × 6,489.60
  4. Step 4: Simplify right side
    11,164.32x = 108,757,778.69
  5. Step 5: Solve for x
    x = 108,757,778.69/11,164.32
  6. Step 6: Final answer
    x = 9,741.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.