Home / 8,340.82-12,511.26-3,345.46

Finding the Fourth Proportional to 8,340.82, 12,511.26 and 3,345.46

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Solution

The fourth proportional to 8,340.82, 12,511.26 and 3,345.46 is: 5,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.82 : 12,511.26 = 3,345.46 : x
  2. Step 2: Convert to fraction form
    8,340.82/12,511.26 = 3,345.46/x
  3. Step 3: Cross multiply
    8,340.82x = 12,511.26 × 3,345.46
  4. Step 4: Simplify right side
    8,340.82x = 41,855,919.88
  5. Step 5: Solve for x
    x = 41,855,919.88/8,340.82
  6. Step 6: Final answer
    x = 5,018.20

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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.