Home / 8,240.72-12,363.84-2,694.32

Finding the Fourth Proportional to 8,240.72, 12,363.84 and 2,694.32

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Solution

The fourth proportional to 8,240.72, 12,363.84 and 2,694.32 is: 4,042.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.72 : 12,363.84 = 2,694.32 : x
  2. Step 2: Convert to fraction form
    8,240.72/12,363.84 = 2,694.32/x
  3. Step 3: Cross multiply
    8,240.72x = 12,363.84 × 2,694.32
  4. Step 4: Simplify right side
    8,240.72x = 33,312,141.39
  5. Step 5: Solve for x
    x = 33,312,141.39/8,240.72
  6. Step 6: Final answer
    x = 4,042.38

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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.