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Finding the Fourth Proportional to 8,133.52, 12,226.08 and 7,787.92

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Solution

The fourth proportional to 8,133.52, 12,226.08 and 7,787.92 is: 11,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.52 : 12,226.08 = 7,787.92 : x
  2. Step 2: Convert to fraction form
    8,133.52/12,226.08 = 7,787.92/x
  3. Step 3: Cross multiply
    8,133.52x = 12,226.08 × 7,787.92
  4. Step 4: Simplify right side
    8,133.52x = 95,215,732.95
  5. Step 5: Solve for x
    x = 95,215,732.95/8,133.52
  6. Step 6: Final answer
    x = 11,706.58

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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.