Home / 18,137.44-27,206.30-4,990.53

Finding the Fourth Proportional to 18,137.44, 27,206.30 and 4,990.53

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Solution

The fourth proportional to 18,137.44, 27,206.30 and 4,990.53 is: 7,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137.44 : 27,206.30 = 4,990.53 : x
  2. Step 2: Convert to fraction form
    18,137.44/27,206.30 = 4,990.53/x
  3. Step 3: Cross multiply
    18,137.44x = 27,206.30 × 4,990.53
  4. Step 4: Simplify right side
    18,137.44x = 135,773,856.34
  5. Step 5: Solve for x
    x = 135,773,856.34/18,137.44
  6. Step 6: Final answer
    x = 7,485.83

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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.