Home / 18,122.08-27,186.96-8,768.80

Finding the Fourth Proportional to 18,122.08, 27,186.96 and 8,768.80

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Solution

The fourth proportional to 18,122.08, 27,186.96 and 8,768.80 is: 13,155.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.08 : 27,186.96 = 8,768.80 : x
  2. Step 2: Convert to fraction form
    18,122.08/27,186.96 = 8,768.80/x
  3. Step 3: Cross multiply
    18,122.08x = 27,186.96 × 8,768.80
  4. Step 4: Simplify right side
    18,122.08x = 238,397,014.85
  5. Step 5: Solve for x
    x = 238,397,014.85/18,122.08
  6. Step 6: Final answer
    x = 13,155.06

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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.