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Finding the Fourth Proportional to 13,654.80, 20,453.04 and 8,444.88

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Solution

The fourth proportional to 13,654.80, 20,453.04 and 8,444.88 is: 12,649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.80 : 20,453.04 = 8,444.88 : x
  2. Step 2: Convert to fraction form
    13,654.80/20,453.04 = 8,444.88/x
  3. Step 3: Cross multiply
    13,654.80x = 20,453.04 × 8,444.88
  4. Step 4: Simplify right side
    13,654.80x = 172,723,468.44
  5. Step 5: Solve for x
    x = 172,723,468.44/13,654.80
  6. Step 6: Final answer
    x = 12,649.29

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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.