Home / 8,689.21-13,026.52-3,491.44

Finding the Fourth Proportional to 8,689.21, 13,026.52 and 3,491.44

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Solution

The fourth proportional to 8,689.21, 13,026.52 and 3,491.44 is: 5,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.21 : 13,026.52 = 3,491.44 : x
  2. Step 2: Convert to fraction form
    8,689.21/13,026.52 = 3,491.44/x
  3. Step 3: Cross multiply
    8,689.21x = 13,026.52 × 3,491.44
  4. Step 4: Simplify right side
    8,689.21x = 45,481,284.79
  5. Step 5: Solve for x
    x = 45,481,284.79/8,689.21
  6. Step 6: Final answer
    x = 5,234.23

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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.