Home / 18,520.45-27,786.90-5,872.26

Finding the Fourth Proportional to 18,520.45, 27,786.90 and 5,872.26

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Solution

The fourth proportional to 18,520.45, 27,786.90 and 5,872.26 is: 8,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.45 : 27,786.90 = 5,872.26 : x
  2. Step 2: Convert to fraction form
    18,520.45/27,786.90 = 5,872.26/x
  3. Step 3: Cross multiply
    18,520.45x = 27,786.90 × 5,872.26
  4. Step 4: Simplify right side
    18,520.45x = 163,172,027.62
  5. Step 5: Solve for x
    x = 163,172,027.62/18,520.45
  6. Step 6: Final answer
    x = 8,810.37

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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.