Home / 18,376.15-27,578.09-13,458.54

Finding the Fourth Proportional to 18,376.15, 27,578.09 and 13,458.54

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Solution

The fourth proportional to 18,376.15, 27,578.09 and 13,458.54 is: 20,197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.15 : 27,578.09 = 13,458.54 : x
  2. Step 2: Convert to fraction form
    18,376.15/27,578.09 = 13,458.54/x
  3. Step 3: Cross multiply
    18,376.15x = 27,578.09 × 13,458.54
  4. Step 4: Simplify right side
    18,376.15x = 371,160,792.09
  5. Step 5: Solve for x
    x = 371,160,792.09/18,376.15
  6. Step 6: Final answer
    x = 20,197.96

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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.