Home / 13,285.37-19,928.03-3,424.56

Finding the Fourth Proportional to 13,285.37, 19,928.03 and 3,424.56

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Solution

The fourth proportional to 13,285.37, 19,928.03 and 3,424.56 is: 5,136.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.37 : 19,928.03 = 3,424.56 : x
  2. Step 2: Convert to fraction form
    13,285.37/19,928.03 = 3,424.56/x
  3. Step 3: Cross multiply
    13,285.37x = 19,928.03 × 3,424.56
  4. Step 4: Simplify right side
    13,285.37x = 68,244,717.29
  5. Step 5: Solve for x
    x = 68,244,717.29/13,285.37
  6. Step 6: Final answer
    x = 5,136.83

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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.