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Finding the Fourth Proportional to 8,299.63, 12,447.10 and 3,299.76

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Solution

The fourth proportional to 8,299.63, 12,447.10 and 3,299.76 is: 4,948.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,299.63 : 12,447.10 = 3,299.76 : x
  2. Step 2: Convert to fraction form
    8,299.63/12,447.10 = 3,299.76/x
  3. Step 3: Cross multiply
    8,299.63x = 12,447.10 × 3,299.76
  4. Step 4: Simplify right side
    8,299.63x = 41,072,442.70
  5. Step 5: Solve for x
    x = 41,072,442.70/8,299.63
  6. Step 6: Final answer
    x = 4,948.71

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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.