Home / 18,121.08-27,185.46-8,767.80

Finding the Fourth Proportional to 18,121.08, 27,185.46 and 8,767.80

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Solution

The fourth proportional to 18,121.08, 27,185.46 and 8,767.80 is: 13,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.08 : 27,185.46 = 8,767.80 : x
  2. Step 2: Convert to fraction form
    18,121.08/27,185.46 = 8,767.80/x
  3. Step 3: Cross multiply
    18,121.08x = 27,185.46 × 8,767.80
  4. Step 4: Simplify right side
    18,121.08x = 238,356,676.19
  5. Step 5: Solve for x
    x = 238,356,676.19/18,121.08
  6. Step 6: Final answer
    x = 13,153.56

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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.