Home / 13,828.50-20,743.96-5,510.60

Finding the Fourth Proportional to 13,828.50, 20,743.96 and 5,510.60

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Solution

The fourth proportional to 13,828.50, 20,743.96 and 5,510.60 is: 8,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.50 : 20,743.96 = 5,510.60 : x
  2. Step 2: Convert to fraction form
    13,828.50/20,743.96 = 5,510.60/x
  3. Step 3: Cross multiply
    13,828.50x = 20,743.96 × 5,510.60
  4. Step 4: Simplify right side
    13,828.50x = 114,311,665.98
  5. Step 5: Solve for x
    x = 114,311,665.98/13,828.50
  6. Step 6: Final answer
    x = 8,266.38

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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.