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Finding the Fourth Proportional to 8,369.68, 12,555.25 and 3,104.75

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Solution

The fourth proportional to 8,369.68, 12,555.25 and 3,104.75 is: 4,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.68 : 12,555.25 = 3,104.75 : x
  2. Step 2: Convert to fraction form
    8,369.68/12,555.25 = 3,104.75/x
  3. Step 3: Cross multiply
    8,369.68x = 12,555.25 × 3,104.75
  4. Step 4: Simplify right side
    8,369.68x = 38,980,857.42
  5. Step 5: Solve for x
    x = 38,980,857.42/8,369.68
  6. Step 6: Final answer
    x = 4,657.39

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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.