Home / 14,480.72-21,720.90-4,092.56

Finding the Fourth Proportional to 14,480.72, 21,720.90 and 4,092.56

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Solution

The fourth proportional to 14,480.72, 21,720.90 and 4,092.56 is: 6,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.72 : 21,720.90 = 4,092.56 : x
  2. Step 2: Convert to fraction form
    14,480.72/21,720.90 = 4,092.56/x
  3. Step 3: Cross multiply
    14,480.72x = 21,720.90 × 4,092.56
  4. Step 4: Simplify right side
    14,480.72x = 88,894,086.50
  5. Step 5: Solve for x
    x = 88,894,086.50/14,480.72
  6. Step 6: Final answer
    x = 6,138.79

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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.