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Finding the Fourth Proportional to 8,445.54, 12,667.17 and 2,205.99

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Solution

The fourth proportional to 8,445.54, 12,667.17 and 2,205.99 is: 3,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.54 : 12,667.17 = 2,205.99 : x
  2. Step 2: Convert to fraction form
    8,445.54/12,667.17 = 2,205.99/x
  3. Step 3: Cross multiply
    8,445.54x = 12,667.17 × 2,205.99
  4. Step 4: Simplify right side
    8,445.54x = 27,943,650.35
  5. Step 5: Solve for x
    x = 27,943,650.35/8,445.54
  6. Step 6: Final answer
    x = 3,308.69

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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.