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Finding the Fourth Proportional to 8,682.46, 13,035.21 and 8,382.94

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Solution

The fourth proportional to 8,682.46, 13,035.21 and 8,382.94 is: 12,585.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.46 : 13,035.21 = 8,382.94 : x
  2. Step 2: Convert to fraction form
    8,682.46/13,035.21 = 8,382.94/x
  3. Step 3: Cross multiply
    8,682.46x = 13,035.21 × 8,382.94
  4. Step 4: Simplify right side
    8,682.46x = 109,273,383.32
  5. Step 5: Solve for x
    x = 109,273,383.32/8,682.46
  6. Step 6: Final answer
    x = 12,585.53

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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.