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Finding the Fourth Proportional to 8,603.88, 11,876.97 and 7,284.42

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Solution

The fourth proportional to 8,603.88, 11,876.97 and 7,284.42 is: 10,055.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.88 : 11,876.97 = 7,284.42 : x
  2. Step 2: Convert to fraction form
    8,603.88/11,876.97 = 7,284.42/x
  3. Step 3: Cross multiply
    8,603.88x = 11,876.97 × 7,284.42
  4. Step 4: Simplify right side
    8,603.88x = 86,516,837.81
  5. Step 5: Solve for x
    x = 86,516,837.81/8,603.88
  6. Step 6: Final answer
    x = 10,055.56

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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.