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Finding the Fourth Proportional to 11,758.36, 16,229.48 and 7,279.44

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Solution

The fourth proportional to 11,758.36, 16,229.48 and 7,279.44 is: 10,047.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,758.36 : 16,229.48 = 7,279.44 : x
  2. Step 2: Convert to fraction form
    11,758.36/16,229.48 = 7,279.44/x
  3. Step 3: Cross multiply
    11,758.36x = 16,229.48 × 7,279.44
  4. Step 4: Simplify right side
    11,758.36x = 118,141,525.89
  5. Step 5: Solve for x
    x = 118,141,525.89/11,758.36
  6. Step 6: Final answer
    x = 10,047.45

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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.