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Finding the Fourth Proportional to 8,463.46, 12,697.79 and 3,787.41

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Solution

The fourth proportional to 8,463.46, 12,697.79 and 3,787.41 is: 5,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.46 : 12,697.79 = 3,787.41 : x
  2. Step 2: Convert to fraction form
    8,463.46/12,697.79 = 3,787.41/x
  3. Step 3: Cross multiply
    8,463.46x = 12,697.79 × 3,787.41
  4. Step 4: Simplify right side
    8,463.46x = 48,091,736.82
  5. Step 5: Solve for x
    x = 48,091,736.82/8,463.46
  6. Step 6: Final answer
    x = 5,682.28

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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.