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Finding the Fourth Proportional to 13,824.92, 19,078.08 and 7,537.52

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Solution

The fourth proportional to 13,824.92, 19,078.08 and 7,537.52 is: 10,401.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.92 : 19,078.08 = 7,537.52 : x
  2. Step 2: Convert to fraction form
    13,824.92/19,078.08 = 7,537.52/x
  3. Step 3: Cross multiply
    13,824.92x = 19,078.08 × 7,537.52
  4. Step 4: Simplify right side
    13,824.92x = 143,801,409.56
  5. Step 5: Solve for x
    x = 143,801,409.56/13,824.92
  6. Step 6: Final answer
    x = 10,401.61

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