Home / 10,982.40-16,474.70-3,191.28

Finding the Fourth Proportional to 10,982.40, 16,474.70 and 3,191.28

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Solution

The fourth proportional to 10,982.40, 16,474.70 and 3,191.28 is: 4,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.40 : 16,474.70 = 3,191.28 : x
  2. Step 2: Convert to fraction form
    10,982.40/16,474.70 = 3,191.28/x
  3. Step 3: Cross multiply
    10,982.40x = 16,474.70 × 3,191.28
  4. Step 4: Simplify right side
    10,982.40x = 52,575,380.62
  5. Step 5: Solve for x
    x = 52,575,380.62/10,982.40
  6. Step 6: Final answer
    x = 4,787.24

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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.