Home / 18,311.56-27,469.20-4,984.75

Finding the Fourth Proportional to 18,311.56, 27,469.20 and 4,984.75

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Solution

The fourth proportional to 18,311.56, 27,469.20 and 4,984.75 is: 7,477.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.56 : 27,469.20 = 4,984.75 : x
  2. Step 2: Convert to fraction form
    18,311.56/27,469.20 = 4,984.75/x
  3. Step 3: Cross multiply
    18,311.56x = 27,469.20 × 4,984.75
  4. Step 4: Simplify right side
    18,311.56x = 136,927,094.70
  5. Step 5: Solve for x
    x = 136,927,094.70/18,311.56
  6. Step 6: Final answer
    x = 7,477.63

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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.