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Finding the Fourth Proportional to 14,418.78, 21,626.22 and 5,659.86

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Solution

The fourth proportional to 14,418.78, 21,626.22 and 5,659.86 is: 8,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.78 : 21,626.22 = 5,659.86 : x
  2. Step 2: Convert to fraction form
    14,418.78/21,626.22 = 5,659.86/x
  3. Step 3: Cross multiply
    14,418.78x = 21,626.22 × 5,659.86
  4. Step 4: Simplify right side
    14,418.78x = 122,401,377.53
  5. Step 5: Solve for x
    x = 122,401,377.53/14,418.78
  6. Step 6: Final answer
    x = 8,489.02

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1.5x scale

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.