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Finding the Fourth Proportional to 8,755.86, 13,122.82 and 4,374.54

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Solution

The fourth proportional to 8,755.86, 13,122.82 and 4,374.54 is: 6,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.86 : 13,122.82 = 4,374.54 : x
  2. Step 2: Convert to fraction form
    8,755.86/13,122.82 = 4,374.54/x
  3. Step 3: Cross multiply
    8,755.86x = 13,122.82 × 4,374.54
  4. Step 4: Simplify right side
    8,755.86x = 57,406,301.00
  5. Step 5: Solve for x
    x = 57,406,301.00/8,755.86
  6. Step 6: Final answer
    x = 6,556.33

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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.