Home / 13,874.74-20,814.99-4,640.50

Finding the Fourth Proportional to 13,874.74, 20,814.99 and 4,640.50

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Solution

The fourth proportional to 13,874.74, 20,814.99 and 4,640.50 is: 6,961.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,874.74 : 20,814.99 = 4,640.50 : x
  2. Step 2: Convert to fraction form
    13,874.74/20,814.99 = 4,640.50/x
  3. Step 3: Cross multiply
    13,874.74x = 20,814.99 × 4,640.50
  4. Step 4: Simplify right side
    13,874.74x = 96,591,961.10
  5. Step 5: Solve for x
    x = 96,591,961.10/13,874.74
  6. Step 6: Final answer
    x = 6,961.71

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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.