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Finding the Fourth Proportional to 8,344.87, 12,520.80 and 3,662.47

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Solution

The fourth proportional to 8,344.87, 12,520.80 and 3,662.47 is: 5,495.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.87 : 12,520.80 = 3,662.47 : x
  2. Step 2: Convert to fraction form
    8,344.87/12,520.80 = 3,662.47/x
  3. Step 3: Cross multiply
    8,344.87x = 12,520.80 × 3,662.47
  4. Step 4: Simplify right side
    8,344.87x = 45,857,054.38
  5. Step 5: Solve for x
    x = 45,857,054.38/8,344.87
  6. Step 6: Final answer
    x = 5,495.24

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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.