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Finding the Fourth Proportional to 14,508.86, 20,021.04 and 8,134.52

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Solution

The fourth proportional to 14,508.86, 20,021.04 and 8,134.52 is: 11,224.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508.86 : 20,021.04 = 8,134.52 : x
  2. Step 2: Convert to fraction form
    14,508.86/20,021.04 = 8,134.52/x
  3. Step 3: Cross multiply
    14,508.86x = 20,021.04 × 8,134.52
  4. Step 4: Simplify right side
    14,508.86x = 162,861,550.30
  5. Step 5: Solve for x
    x = 162,861,550.30/14,508.86
  6. Step 6: Final answer
    x = 11,224.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.