Home / 11,451.83-17,177.82-3,131.66

Finding the Fourth Proportional to 11,451.83, 17,177.82 and 3,131.66

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Solution

The fourth proportional to 11,451.83, 17,177.82 and 3,131.66 is: 4,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.83 : 17,177.82 = 3,131.66 : x
  2. Step 2: Convert to fraction form
    11,451.83/17,177.82 = 3,131.66/x
  3. Step 3: Cross multiply
    11,451.83x = 17,177.82 × 3,131.66
  4. Step 4: Simplify right side
    11,451.83x = 53,795,140.60
  5. Step 5: Solve for x
    x = 53,795,140.60/11,451.83
  6. Step 6: Final answer
    x = 4,697.51

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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.