Home / 10,660.98-15,982.34-4,091.88

Finding the Fourth Proportional to 10,660.98, 15,982.34 and 4,091.88

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Solution

The fourth proportional to 10,660.98, 15,982.34 and 4,091.88 is: 6,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.98 : 15,982.34 = 4,091.88 : x
  2. Step 2: Convert to fraction form
    10,660.98/15,982.34 = 4,091.88/x
  3. Step 3: Cross multiply
    10,660.98x = 15,982.34 × 4,091.88
  4. Step 4: Simplify right side
    10,660.98x = 65,397,817.40
  5. Step 5: Solve for x
    x = 65,397,817.40/10,660.98
  6. Step 6: Final answer
    x = 6,134.32

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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.