Home / 18,317.28-27,481.07-5,169.76

Finding the Fourth Proportional to 18,317.28, 27,481.07 and 5,169.76

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Solution

The fourth proportional to 18,317.28, 27,481.07 and 5,169.76 is: 7,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,317.28 : 27,481.07 = 5,169.76 : x
  2. Step 2: Convert to fraction form
    18,317.28/27,481.07 = 5,169.76/x
  3. Step 3: Cross multiply
    18,317.28x = 27,481.07 × 5,169.76
  4. Step 4: Simplify right side
    18,317.28x = 142,070,536.44
  5. Step 5: Solve for x
    x = 142,070,536.44/18,317.28
  6. Step 6: Final answer
    x = 7,756.09

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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.