Home / 12,982.76-19,474.15-3,622.80

Finding the Fourth Proportional to 12,982.76, 19,474.15 and 3,622.80

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Solution

The fourth proportional to 12,982.76, 19,474.15 and 3,622.80 is: 5,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.76 : 19,474.15 = 3,622.80 : x
  2. Step 2: Convert to fraction form
    12,982.76/19,474.15 = 3,622.80/x
  3. Step 3: Cross multiply
    12,982.76x = 19,474.15 × 3,622.80
  4. Step 4: Simplify right side
    12,982.76x = 70,550,950.62
  5. Step 5: Solve for x
    x = 70,550,950.62/12,982.76
  6. Step 6: Final answer
    x = 5,434.20

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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.