Home / 12,202.70-18,309.36-4,812.54

Finding the Fourth Proportional to 12,202.70, 18,309.36 and 4,812.54

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Solution

The fourth proportional to 12,202.70, 18,309.36 and 4,812.54 is: 7,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.70 : 18,309.36 = 4,812.54 : x
  2. Step 2: Convert to fraction form
    12,202.70/18,309.36 = 4,812.54/x
  3. Step 3: Cross multiply
    12,202.70x = 18,309.36 × 4,812.54
  4. Step 4: Simplify right side
    12,202.70x = 88,114,527.37
  5. Step 5: Solve for x
    x = 88,114,527.37/12,202.70
  6. Step 6: Final answer
    x = 7,220.90

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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.