Home / 13,786.23-20,679.39-3,397.98

Finding the Fourth Proportional to 13,786.23, 20,679.39 and 3,397.98

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Solution

The fourth proportional to 13,786.23, 20,679.39 and 3,397.98 is: 5,096.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.23 : 20,679.39 = 3,397.98 : x
  2. Step 2: Convert to fraction form
    13,786.23/20,679.39 = 3,397.98/x
  3. Step 3: Cross multiply
    13,786.23x = 20,679.39 × 3,397.98
  4. Step 4: Simplify right side
    13,786.23x = 70,268,153.63
  5. Step 5: Solve for x
    x = 70,268,153.63/13,786.23
  6. Step 6: Final answer
    x = 5,096.98

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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.