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Finding the Fourth Proportional to 8,854.90, 13,279.29 and 3,927.99

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Solution

The fourth proportional to 8,854.90, 13,279.29 and 3,927.99 is: 5,890.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.90 : 13,279.29 = 3,927.99 : x
  2. Step 2: Convert to fraction form
    8,854.90/13,279.29 = 3,927.99/x
  3. Step 3: Cross multiply
    8,854.90x = 13,279.29 × 3,927.99
  4. Step 4: Simplify right side
    8,854.90x = 52,160,918.33
  5. Step 5: Solve for x
    x = 52,160,918.33/8,854.90
  6. Step 6: Final answer
    x = 5,890.63

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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.