Home / 18,682.11-28,012.23-5,530.95

Finding the Fourth Proportional to 18,682.11, 28,012.23 and 5,530.95

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Solution

The fourth proportional to 18,682.11, 28,012.23 and 5,530.95 is: 8,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.11 : 28,012.23 = 5,530.95 : x
  2. Step 2: Convert to fraction form
    18,682.11/28,012.23 = 5,530.95/x
  3. Step 3: Cross multiply
    18,682.11x = 28,012.23 × 5,530.95
  4. Step 4: Simplify right side
    18,682.11x = 154,934,243.52
  5. Step 5: Solve for x
    x = 154,934,243.52/18,682.11
  6. Step 6: Final answer
    x = 8,293.19

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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.