Home / 8,634.28-12,942.70-3,366

Finding the Fourth Proportional to 8,634.28, 12,942.70 and 3,366

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Solution

The fourth proportional to 8,634.28, 12,942.70 and 3,366 is: 5,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.28 : 12,942.70 = 3,366 : x
  2. Step 2: Convert to fraction form
    8,634.28/12,942.70 = 3,366/x
  3. Step 3: Cross multiply
    8,634.28x = 12,942.70 × 3,366
  4. Step 4: Simplify right side
    8,634.28x = 43,565,128.20
  5. Step 5: Solve for x
    x = 43,565,128.20/8,634.28
  6. Step 6: Final answer
    x = 5,045.60

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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.