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Finding the Fourth Proportional to 10,855.03, 16,285 and 3,459.91

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Solution

The fourth proportional to 10,855.03, 16,285 and 3,459.91 is: 5,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.03 : 16,285 = 3,459.91 : x
  2. Step 2: Convert to fraction form
    10,855.03/16,285 = 3,459.91/x
  3. Step 3: Cross multiply
    10,855.03x = 16,285 × 3,459.91
  4. Step 4: Simplify right side
    10,855.03x = 56,344,634.35
  5. Step 5: Solve for x
    x = 56,344,634.35/10,855.03
  6. Step 6: Final answer
    x = 5,190.65

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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.