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Finding the Fourth Proportional to 11,613.48, 16,028.04 and 6,897.78

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Solution

The fourth proportional to 11,613.48, 16,028.04 and 6,897.78 is: 9,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613.48 : 16,028.04 = 6,897.78 : x
  2. Step 2: Convert to fraction form
    11,613.48/16,028.04 = 6,897.78/x
  3. Step 3: Cross multiply
    11,613.48x = 16,028.04 × 6,897.78
  4. Step 4: Simplify right side
    11,613.48x = 110,557,893.75
  5. Step 5: Solve for x
    x = 110,557,893.75/11,613.48
  6. Step 6: Final answer
    x = 9,519.79

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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.