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Finding the Fourth Proportional to 13,670.44, 20,505.66 and 4,436.44

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Solution

The fourth proportional to 13,670.44, 20,505.66 and 4,436.44 is: 6,654.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.44 : 20,505.66 = 4,436.44 : x
  2. Step 2: Convert to fraction form
    13,670.44/20,505.66 = 4,436.44/x
  3. Step 3: Cross multiply
    13,670.44x = 20,505.66 × 4,436.44
  4. Step 4: Simplify right side
    13,670.44x = 90,972,062.35
  5. Step 5: Solve for x
    x = 90,972,062.35/13,670.44
  6. Step 6: Final answer
    x = 6,654.66

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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.