Home / 8,336.80-12,491.31-5,866.43

Finding the Fourth Proportional to 8,336.80, 12,491.31 and 5,866.43

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Solution

The fourth proportional to 8,336.80, 12,491.31 and 5,866.43 is: 8,789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.80 : 12,491.31 = 5,866.43 : x
  2. Step 2: Convert to fraction form
    8,336.80/12,491.31 = 5,866.43/x
  3. Step 3: Cross multiply
    8,336.80x = 12,491.31 × 5,866.43
  4. Step 4: Simplify right side
    8,336.80x = 73,279,347.93
  5. Step 5: Solve for x
    x = 73,279,347.93/8,336.80
  6. Step 6: Final answer
    x = 8,789.87

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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.