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Finding the Fourth Proportional to 13,223.97, 18,248.97 and 7,255.47

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Solution

The fourth proportional to 13,223.97, 18,248.97 and 7,255.47 is: 10,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.97 : 18,248.97 = 7,255.47 : x
  2. Step 2: Convert to fraction form
    13,223.97/18,248.97 = 7,255.47/x
  3. Step 3: Cross multiply
    13,223.97x = 18,248.97 × 7,255.47
  4. Step 4: Simplify right side
    13,223.97x = 132,404,854.37
  5. Step 5: Solve for x
    x = 132,404,854.37/13,223.97
  6. Step 6: Final answer
    x = 10,012.49

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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.