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Finding the Fourth Proportional to 8,425.44, 12,634 and 2,580.64

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Solution

The fourth proportional to 8,425.44, 12,634 and 2,580.64 is: 3,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.44 : 12,634 = 2,580.64 : x
  2. Step 2: Convert to fraction form
    8,425.44/12,634 = 2,580.64/x
  3. Step 3: Cross multiply
    8,425.44x = 12,634 × 2,580.64
  4. Step 4: Simplify right side
    8,425.44x = 32,603,805.76
  5. Step 5: Solve for x
    x = 32,603,805.76/8,425.44
  6. Step 6: Final answer
    x = 3,869.69

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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.