Home / 11,510.55-17,265.87-3,191.22

Finding the Fourth Proportional to 11,510.55, 17,265.87 and 3,191.22

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Solution

The fourth proportional to 11,510.55, 17,265.87 and 3,191.22 is: 4,786.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,510.55 : 17,265.87 = 3,191.22 : x
  2. Step 2: Convert to fraction form
    11,510.55/17,265.87 = 3,191.22/x
  3. Step 3: Cross multiply
    11,510.55x = 17,265.87 × 3,191.22
  4. Step 4: Simplify right side
    11,510.55x = 55,099,189.66
  5. Step 5: Solve for x
    x = 55,099,189.66/11,510.55
  6. Step 6: Final answer
    x = 4,786.84

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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.