Home / 13,904.26-20,834.79-8,705.86

Finding the Fourth Proportional to 13,904.26, 20,834.79 and 8,705.86

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Solution

The fourth proportional to 13,904.26, 20,834.79 and 8,705.86 is: 13,045.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.26 : 20,834.79 = 8,705.86 : x
  2. Step 2: Convert to fraction form
    13,904.26/20,834.79 = 8,705.86/x
  3. Step 3: Cross multiply
    13,904.26x = 20,834.79 × 8,705.86
  4. Step 4: Simplify right side
    13,904.26x = 181,384,764.87
  5. Step 5: Solve for x
    x = 181,384,764.87/13,904.26
  6. Step 6: Final answer
    x = 13,045.27

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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.