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Finding the Fourth Proportional to 14,819.23, 20,450.57 and 8,104.89

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Solution

The fourth proportional to 14,819.23, 20,450.57 and 8,104.89 is: 11,184.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,819.23 : 20,450.57 = 8,104.89 : x
  2. Step 2: Convert to fraction form
    14,819.23/20,450.57 = 8,104.89/x
  3. Step 3: Cross multiply
    14,819.23x = 20,450.57 × 8,104.89
  4. Step 4: Simplify right side
    14,819.23x = 165,749,620.29
  5. Step 5: Solve for x
    x = 165,749,620.29/14,819.23
  6. Step 6: Final answer
    x = 11,184.77

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1.5x scale

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.