Home / 12,321.10-18,489.85-4,529.91

Finding the Fourth Proportional to 12,321.10, 18,489.85 and 4,529.91

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Solution

The fourth proportional to 12,321.10, 18,489.85 and 4,529.91 is: 6,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.10 : 18,489.85 = 4,529.91 : x
  2. Step 2: Convert to fraction form
    12,321.10/18,489.85 = 4,529.91/x
  3. Step 3: Cross multiply
    12,321.10x = 18,489.85 × 4,529.91
  4. Step 4: Simplify right side
    12,321.10x = 83,757,324.35
  5. Step 5: Solve for x
    x = 83,757,324.35/12,321.10
  6. Step 6: Final answer
    x = 6,797.88

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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.