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Finding the Fourth Proportional to 8,651.88, 11,939.04 and 4,875.17

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Solution

The fourth proportional to 8,651.88, 11,939.04 and 4,875.17 is: 6,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.88 : 11,939.04 = 4,875.17 : x
  2. Step 2: Convert to fraction form
    8,651.88/11,939.04 = 4,875.17/x
  3. Step 3: Cross multiply
    8,651.88x = 11,939.04 × 4,875.17
  4. Step 4: Simplify right side
    8,651.88x = 58,204,789.94
  5. Step 5: Solve for x
    x = 58,204,789.94/8,651.88
  6. Step 6: Final answer
    x = 6,727.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.