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Finding the Fourth Proportional to 8,604.45, 12,906.95 and 3,057.71

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Solution

The fourth proportional to 8,604.45, 12,906.95 and 3,057.71 is: 4,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.45 : 12,906.95 = 3,057.71 : x
  2. Step 2: Convert to fraction form
    8,604.45/12,906.95 = 3,057.71/x
  3. Step 3: Cross multiply
    8,604.45x = 12,906.95 × 3,057.71
  4. Step 4: Simplify right side
    8,604.45x = 39,465,630.26
  5. Step 5: Solve for x
    x = 39,465,630.26/8,604.45
  6. Step 6: Final answer
    x = 4,586.65

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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.