Home / 8,188.62-12,282.94-2,642.36

Finding the Fourth Proportional to 8,188.62, 12,282.94 and 2,642.36

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Solution

The fourth proportional to 8,188.62, 12,282.94 and 2,642.36 is: 3,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.62 : 12,282.94 = 2,642.36 : x
  2. Step 2: Convert to fraction form
    8,188.62/12,282.94 = 2,642.36/x
  3. Step 3: Cross multiply
    8,188.62x = 12,282.94 × 2,642.36
  4. Step 4: Simplify right side
    8,188.62x = 32,455,949.34
  5. Step 5: Solve for x
    x = 32,455,949.34/8,188.62
  6. Step 6: Final answer
    x = 3,963.54

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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.