Home / 10,972.17-16,459.88-3,179.97

Finding the Fourth Proportional to 10,972.17, 16,459.88 and 3,179.97

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Solution

The fourth proportional to 10,972.17, 16,459.88 and 3,179.97 is: 4,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.17 : 16,459.88 = 3,179.97 : x
  2. Step 2: Convert to fraction form
    10,972.17/16,459.88 = 3,179.97/x
  3. Step 3: Cross multiply
    10,972.17x = 16,459.88 × 3,179.97
  4. Step 4: Simplify right side
    10,972.17x = 52,341,908.70
  5. Step 5: Solve for x
    x = 52,341,908.70/10,972.17
  6. Step 6: Final answer
    x = 4,770.42

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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.