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Finding the Fourth Proportional to 11,801.88, 17,705.90 and 4,406.40

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Solution

The fourth proportional to 11,801.88, 17,705.90 and 4,406.40 is: 6,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,801.88 : 17,705.90 = 4,406.40 : x
  2. Step 2: Convert to fraction form
    11,801.88/17,705.90 = 4,406.40/x
  3. Step 3: Cross multiply
    11,801.88x = 17,705.90 × 4,406.40
  4. Step 4: Simplify right side
    11,801.88x = 78,019,255.73
  5. Step 5: Solve for x
    x = 78,019,255.73/11,801.88
  6. Step 6: Final answer
    x = 6,610.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.