Home / 18,212.77-27,319.20-5,065.14

Finding the Fourth Proportional to 18,212.77, 27,319.20 and 5,065.14

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Solution

The fourth proportional to 18,212.77, 27,319.20 and 5,065.14 is: 7,597.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.77 : 27,319.20 = 5,065.14 : x
  2. Step 2: Convert to fraction form
    18,212.77/27,319.20 = 5,065.14/x
  3. Step 3: Cross multiply
    18,212.77x = 27,319.20 × 5,065.14
  4. Step 4: Simplify right side
    18,212.77x = 138,375,572.69
  5. Step 5: Solve for x
    x = 138,375,572.69/18,212.77
  6. Step 6: Final answer
    x = 7,597.72

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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.