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Finding the Fourth Proportional to 8,891.57, 13,339.38 and 3,047.82

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Solution

The fourth proportional to 8,891.57, 13,339.38 and 3,047.82 is: 4,572.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.57 : 13,339.38 = 3,047.82 : x
  2. Step 2: Convert to fraction form
    8,891.57/13,339.38 = 3,047.82/x
  3. Step 3: Cross multiply
    8,891.57x = 13,339.38 × 3,047.82
  4. Step 4: Simplify right side
    8,891.57x = 40,656,029.15
  5. Step 5: Solve for x
    x = 40,656,029.15/8,891.57
  6. Step 6: Final answer
    x = 4,572.43

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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.