Home / 14,108.72-21,163.10-5,787.18

Finding the Fourth Proportional to 14,108.72, 21,163.10 and 5,787.18

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Solution

The fourth proportional to 14,108.72, 21,163.10 and 5,787.18 is: 8,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.72 : 21,163.10 = 5,787.18 : x
  2. Step 2: Convert to fraction form
    14,108.72/21,163.10 = 5,787.18/x
  3. Step 3: Cross multiply
    14,108.72x = 21,163.10 × 5,787.18
  4. Step 4: Simplify right side
    14,108.72x = 122,474,640.12
  5. Step 5: Solve for x
    x = 122,474,640.12/14,108.72
  6. Step 6: Final answer
    x = 8,680.78

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1.5x scale

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.