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Finding the Fourth Proportional to 8,463.58, 12,695.91 and 2,620.42

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Solution

The fourth proportional to 8,463.58, 12,695.91 and 2,620.42 is: 3,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.58 : 12,695.91 = 2,620.42 : x
  2. Step 2: Convert to fraction form
    8,463.58/12,695.91 = 2,620.42/x
  3. Step 3: Cross multiply
    8,463.58x = 12,695.91 × 2,620.42
  4. Step 4: Simplify right side
    8,463.58x = 33,268,616.48
  5. Step 5: Solve for x
    x = 33,268,616.48/8,463.58
  6. Step 6: Final answer
    x = 3,930.80

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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.