Home / 12,664.67-18,991.50-4,868

Finding the Fourth Proportional to 12,664.67, 18,991.50 and 4,868

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Solution

The fourth proportional to 12,664.67, 18,991.50 and 4,868 is: 7,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.67 : 18,991.50 = 4,868 : x
  2. Step 2: Convert to fraction form
    12,664.67/18,991.50 = 4,868/x
  3. Step 3: Cross multiply
    12,664.67x = 18,991.50 × 4,868
  4. Step 4: Simplify right side
    12,664.67x = 92,450,622
  5. Step 5: Solve for x
    x = 92,450,622/12,664.67
  6. Step 6: Final answer
    x = 7,299.88

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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.