Home / 13,865.34-20,800.06-5,099.56

Finding the Fourth Proportional to 13,865.34, 20,800.06 and 5,099.56

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Solution

The fourth proportional to 13,865.34, 20,800.06 and 5,099.56 is: 7,650.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.34 : 20,800.06 = 5,099.56 : x
  2. Step 2: Convert to fraction form
    13,865.34/20,800.06 = 5,099.56/x
  3. Step 3: Cross multiply
    13,865.34x = 20,800.06 × 5,099.56
  4. Step 4: Simplify right side
    13,865.34x = 106,071,153.97
  5. Step 5: Solve for x
    x = 106,071,153.97/13,865.34
  6. Step 6: Final answer
    x = 7,650.09

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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.