Home / 18,655.88-27,983.82-6,172.56

Finding the Fourth Proportional to 18,655.88, 27,983.82 and 6,172.56

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Solution

The fourth proportional to 18,655.88, 27,983.82 and 6,172.56 is: 9,258.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.88 : 27,983.82 = 6,172.56 : x
  2. Step 2: Convert to fraction form
    18,655.88/27,983.82 = 6,172.56/x
  3. Step 3: Cross multiply
    18,655.88x = 27,983.82 × 6,172.56
  4. Step 4: Simplify right side
    18,655.88x = 172,731,807.98
  5. Step 5: Solve for x
    x = 172,731,807.98/18,655.88
  6. Step 6: Final answer
    x = 9,258.84

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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.