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Finding the Fourth Proportional to 8,838.78, 12,209.31 and 6,194.94

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Solution

The fourth proportional to 8,838.78, 12,209.31 and 6,194.94 is: 8,557.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.78 : 12,209.31 = 6,194.94 : x
  2. Step 2: Convert to fraction form
    8,838.78/12,209.31 = 6,194.94/x
  3. Step 3: Cross multiply
    8,838.78x = 12,209.31 × 6,194.94
  4. Step 4: Simplify right side
    8,838.78x = 75,635,942.89
  5. Step 5: Solve for x
    x = 75,635,942.89/8,838.78
  6. Step 6: Final answer
    x = 8,557.28

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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.