Home / 13,336.14-19,992.87-8,145.66

Finding the Fourth Proportional to 13,336.14, 19,992.87 and 8,145.66

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Solution

The fourth proportional to 13,336.14, 19,992.87 and 8,145.66 is: 12,211.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.14 : 19,992.87 = 8,145.66 : x
  2. Step 2: Convert to fraction form
    13,336.14/19,992.87 = 8,145.66/x
  3. Step 3: Cross multiply
    13,336.14x = 19,992.87 × 8,145.66
  4. Step 4: Simplify right side
    13,336.14x = 162,855,121.44
  5. Step 5: Solve for x
    x = 162,855,121.44/13,336.14
  6. Step 6: Final answer
    x = 12,211.56

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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.