Home / 18,212.25-27,315.30-5,065.95

Finding the Fourth Proportional to 18,212.25, 27,315.30 and 5,065.95

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Solution

The fourth proportional to 18,212.25, 27,315.30 and 5,065.95 is: 7,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.25 : 27,315.30 = 5,065.95 : x
  2. Step 2: Convert to fraction form
    18,212.25/27,315.30 = 5,065.95/x
  3. Step 3: Cross multiply
    18,212.25x = 27,315.30 × 5,065.95
  4. Step 4: Simplify right side
    18,212.25x = 138,377,944.04
  5. Step 5: Solve for x
    x = 138,377,944.04/18,212.25
  6. Step 6: Final answer
    x = 7,598.07

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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.