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Finding the Fourth Proportional to 8,608.70, 12,914.57 and 4,447.55

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Solution

The fourth proportional to 8,608.70, 12,914.57 and 4,447.55 is: 6,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.70 : 12,914.57 = 4,447.55 : x
  2. Step 2: Convert to fraction form
    8,608.70/12,914.57 = 4,447.55/x
  3. Step 3: Cross multiply
    8,608.70x = 12,914.57 × 4,447.55
  4. Step 4: Simplify right side
    8,608.70x = 57,438,239.21
  5. Step 5: Solve for x
    x = 57,438,239.21/8,608.70
  6. Step 6: Final answer
    x = 6,672.11

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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.