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Finding the Fourth Proportional to 8,893.78, 13,324.87 and 5,192.89

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Solution

The fourth proportional to 8,893.78, 13,324.87 and 5,192.89 is: 7,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.78 : 13,324.87 = 5,192.89 : x
  2. Step 2: Convert to fraction form
    8,893.78/13,324.87 = 5,192.89/x
  3. Step 3: Cross multiply
    8,893.78x = 13,324.87 × 5,192.89
  4. Step 4: Simplify right side
    8,893.78x = 69,194,584.17
  5. Step 5: Solve for x
    x = 69,194,584.17/8,893.78
  6. Step 6: Final answer
    x = 7,780.11

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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.