Home / 18,186.08-27,279-4,677.20

Finding the Fourth Proportional to 18,186.08, 27,279 and 4,677.20

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Solution

The fourth proportional to 18,186.08, 27,279 and 4,677.20 is: 7,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.08 : 27,279 = 4,677.20 : x
  2. Step 2: Convert to fraction form
    18,186.08/27,279 = 4,677.20/x
  3. Step 3: Cross multiply
    18,186.08x = 27,279 × 4,677.20
  4. Step 4: Simplify right side
    18,186.08x = 127,589,202.41
  5. Step 5: Solve for x
    x = 127,589,202.41/18,186.08
  6. Step 6: Final answer
    x = 7,015.76

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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.