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Finding the Fourth Proportional to 10,885, 16,333.64 and 4,644.42

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Solution

The fourth proportional to 10,885, 16,333.64 and 4,644.42 is: 6,969.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,885 : 16,333.64 = 4,644.42 : x
  2. Step 2: Convert to fraction form
    10,885/16,333.64 = 4,644.42/x
  3. Step 3: Cross multiply
    10,885x = 16,333.64 × 4,644.42
  4. Step 4: Simplify right side
    10,885x = 75,860,284.29
  5. Step 5: Solve for x
    x = 75,860,284.29/10,885
  6. Step 6: Final answer
    x = 6,969.25

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Why These Related Problems?

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