Home / 11,105.10-16,657.65-3,207.60

Finding the Fourth Proportional to 11,105.10, 16,657.65 and 3,207.60

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Solution

The fourth proportional to 11,105.10, 16,657.65 and 3,207.60 is: 4,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.10 : 16,657.65 = 3,207.60 : x
  2. Step 2: Convert to fraction form
    11,105.10/16,657.65 = 3,207.60/x
  3. Step 3: Cross multiply
    11,105.10x = 16,657.65 × 3,207.60
  4. Step 4: Simplify right side
    11,105.10x = 53,431,078.14
  5. Step 5: Solve for x
    x = 53,431,078.14/11,105.10
  6. Step 6: Final answer
    x = 4,811.40

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Similar ratio
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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.