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Finding the Fourth Proportional to 14,493.80, 20,002.02 and 8,205.80

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Solution

The fourth proportional to 14,493.80, 20,002.02 and 8,205.80 is: 11,324.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,493.80 : 20,002.02 = 8,205.80 : x
  2. Step 2: Convert to fraction form
    14,493.80/20,002.02 = 8,205.80/x
  3. Step 3: Cross multiply
    14,493.80x = 20,002.02 × 8,205.80
  4. Step 4: Simplify right side
    14,493.80x = 164,132,575.72
  5. Step 5: Solve for x
    x = 164,132,575.72/14,493.80
  6. Step 6: Final answer
    x = 11,324.33

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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.