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Finding the Fourth Proportional to 8,447.63, 12,671.64 and 2,604.69

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Solution

The fourth proportional to 8,447.63, 12,671.64 and 2,604.69 is: 3,907.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.63 : 12,671.64 = 2,604.69 : x
  2. Step 2: Convert to fraction form
    8,447.63/12,671.64 = 2,604.69/x
  3. Step 3: Cross multiply
    8,447.63x = 12,671.64 × 2,604.69
  4. Step 4: Simplify right side
    8,447.63x = 33,005,693.99
  5. Step 5: Solve for x
    x = 33,005,693.99/8,447.63
  6. Step 6: Final answer
    x = 3,907.10

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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.