Home / 14,379.33-19,850.36-8,409.09

Finding the Fourth Proportional to 14,379.33, 19,850.36 and 8,409.09

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Solution

The fourth proportional to 14,379.33, 19,850.36 and 8,409.09 is: 11,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.33 : 19,850.36 = 8,409.09 : x
  2. Step 2: Convert to fraction form
    14,379.33/19,850.36 = 8,409.09/x
  3. Step 3: Cross multiply
    14,379.33x = 19,850.36 × 8,409.09
  4. Step 4: Simplify right side
    14,379.33x = 166,923,421.73
  5. Step 5: Solve for x
    x = 166,923,421.73/14,379.33
  6. Step 6: Final answer
    x = 11,608.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.