Home / 13,489.27-18,612.03-8,183.95

Finding the Fourth Proportional to 13,489.27, 18,612.03 and 8,183.95

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Solution

The fourth proportional to 13,489.27, 18,612.03 and 8,183.95 is: 11,291.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.27 : 18,612.03 = 8,183.95 : x
  2. Step 2: Convert to fraction form
    13,489.27/18,612.03 = 8,183.95/x
  3. Step 3: Cross multiply
    13,489.27x = 18,612.03 × 8,183.95
  4. Step 4: Simplify right side
    13,489.27x = 152,319,922.92
  5. Step 5: Solve for x
    x = 152,319,922.92/13,489.27
  6. Step 6: Final answer
    x = 11,291.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.