Home / 13,814.11-20,696.39-8,394.62

Finding the Fourth Proportional to 13,814.11, 20,696.39 and 8,394.62

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Solution

The fourth proportional to 13,814.11, 20,696.39 and 8,394.62 is: 12,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.11 : 20,696.39 = 8,394.62 : x
  2. Step 2: Convert to fraction form
    13,814.11/20,696.39 = 8,394.62/x
  3. Step 3: Cross multiply
    13,814.11x = 20,696.39 × 8,394.62
  4. Step 4: Simplify right side
    13,814.11x = 173,738,379.08
  5. Step 5: Solve for x
    x = 173,738,379.08/13,814.11
  6. Step 6: Final answer
    x = 12,576.88

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1.5x scale

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.