Home / 18,695.18-28,028.82-11,297.96

Finding the Fourth Proportional to 18,695.18, 28,028.82 and 11,297.96

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Solution

The fourth proportional to 18,695.18, 28,028.82 and 11,297.96 is: 16,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695.18 : 28,028.82 = 11,297.96 : x
  2. Step 2: Convert to fraction form
    18,695.18/28,028.82 = 11,297.96/x
  3. Step 3: Cross multiply
    18,695.18x = 28,028.82 × 11,297.96
  4. Step 4: Simplify right side
    18,695.18x = 316,668,487.21
  5. Step 5: Solve for x
    x = 316,668,487.21/18,695.18
  6. Step 6: Final answer
    x = 16,938.51

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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.