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Finding the Fourth Proportional to 8,476.60, 12,715.71 and 2,631.64

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Solution

The fourth proportional to 8,476.60, 12,715.71 and 2,631.64 is: 3,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.60 : 12,715.71 = 2,631.64 : x
  2. Step 2: Convert to fraction form
    8,476.60/12,715.71 = 2,631.64/x
  3. Step 3: Cross multiply
    8,476.60x = 12,715.71 × 2,631.64
  4. Step 4: Simplify right side
    8,476.60x = 33,463,107.49
  5. Step 5: Solve for x
    x = 33,463,107.49/8,476.60
  6. Step 6: Final answer
    x = 3,947.71

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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.