Home / 11,449.22-17,172.68-3,129.98

Finding the Fourth Proportional to 11,449.22, 17,172.68 and 3,129.98

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Solution

The fourth proportional to 11,449.22, 17,172.68 and 3,129.98 is: 4,694.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,449.22 : 17,172.68 = 3,129.98 : x
  2. Step 2: Convert to fraction form
    11,449.22/17,172.68 = 3,129.98/x
  3. Step 3: Cross multiply
    11,449.22x = 17,172.68 × 3,129.98
  4. Step 4: Simplify right side
    11,449.22x = 53,750,043.43
  5. Step 5: Solve for x
    x = 53,750,043.43/11,449.22
  6. Step 6: Final answer
    x = 4,694.65

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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.