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Finding the Fourth Proportional to 8,344.78, 12,519.74 and 4,446.25

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Solution

The fourth proportional to 8,344.78, 12,519.74 and 4,446.25 is: 6,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.78 : 12,519.74 = 4,446.25 : x
  2. Step 2: Convert to fraction form
    8,344.78/12,519.74 = 4,446.25/x
  3. Step 3: Cross multiply
    8,344.78x = 12,519.74 × 4,446.25
  4. Step 4: Simplify right side
    8,344.78x = 55,665,893.98
  5. Step 5: Solve for x
    x = 55,665,893.98/8,344.78
  6. Step 6: Final answer
    x = 6,670.74

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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.