Home / 8,264.31-12,385.49-3,872.54

Finding the Fourth Proportional to 8,264.31, 12,385.49 and 3,872.54

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Solution

The fourth proportional to 8,264.31, 12,385.49 and 3,872.54 is: 5,803.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,264.31 : 12,385.49 = 3,872.54 : x
  2. Step 2: Convert to fraction form
    8,264.31/12,385.49 = 3,872.54/x
  3. Step 3: Cross multiply
    8,264.31x = 12,385.49 × 3,872.54
  4. Step 4: Simplify right side
    8,264.31x = 47,963,224.15
  5. Step 5: Solve for x
    x = 47,963,224.15/8,264.31
  6. Step 6: Final answer
    x = 5,803.66

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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.