Home / 13,764.27-20,653.26-5,450.28

Finding the Fourth Proportional to 13,764.27, 20,653.26 and 5,450.28

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Solution

The fourth proportional to 13,764.27, 20,653.26 and 5,450.28 is: 8,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.27 : 20,653.26 = 5,450.28 : x
  2. Step 2: Convert to fraction form
    13,764.27/20,653.26 = 5,450.28/x
  3. Step 3: Cross multiply
    13,764.27x = 20,653.26 × 5,450.28
  4. Step 4: Simplify right side
    13,764.27x = 112,566,049.91
  5. Step 5: Solve for x
    x = 112,566,049.91/13,764.27
  6. Step 6: Final answer
    x = 8,178.13

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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.