Home / 13,834.70-20,752.20-3,974.06

Finding the Fourth Proportional to 13,834.70, 20,752.20 and 3,974.06

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Solution

The fourth proportional to 13,834.70, 20,752.20 and 3,974.06 is: 5,961.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,834.70 : 20,752.20 = 3,974.06 : x
  2. Step 2: Convert to fraction form
    13,834.70/20,752.20 = 3,974.06/x
  3. Step 3: Cross multiply
    13,834.70x = 20,752.20 × 3,974.06
  4. Step 4: Simplify right side
    13,834.70x = 82,470,539.81
  5. Step 5: Solve for x
    x = 82,470,539.81/13,834.70
  6. Step 6: Final answer
    x = 5,961.14

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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.