Home / 11,191.59-16,786.71-4,170.24

Finding the Fourth Proportional to 11,191.59, 16,786.71 and 4,170.24

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Solution

The fourth proportional to 11,191.59, 16,786.71 and 4,170.24 is: 6,255.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.59 : 16,786.71 = 4,170.24 : x
  2. Step 2: Convert to fraction form
    11,191.59/16,786.71 = 4,170.24/x
  3. Step 3: Cross multiply
    11,191.59x = 16,786.71 × 4,170.24
  4. Step 4: Simplify right side
    11,191.59x = 70,004,609.51
  5. Step 5: Solve for x
    x = 70,004,609.51/11,191.59
  6. Step 6: Final answer
    x = 6,255.11

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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.