Home / 8,589.11-12,865.41-4,889.43

Finding the Fourth Proportional to 8,589.11, 12,865.41 and 4,889.43

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Solution

The fourth proportional to 8,589.11, 12,865.41 and 4,889.43 is: 7,323.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.11 : 12,865.41 = 4,889.43 : x
  2. Step 2: Convert to fraction form
    8,589.11/12,865.41 = 4,889.43/x
  3. Step 3: Cross multiply
    8,589.11x = 12,865.41 × 4,889.43
  4. Step 4: Simplify right side
    8,589.11x = 62,904,521.62
  5. Step 5: Solve for x
    x = 62,904,521.62/8,589.11
  6. Step 6: Final answer
    x = 7,323.76

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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.