Home / 11,965.35-17,939.07-8,256.99

Finding the Fourth Proportional to 11,965.35, 17,939.07 and 8,256.99

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Solution

The fourth proportional to 11,965.35, 17,939.07 and 8,256.99 is: 12,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.35 : 17,939.07 = 8,256.99 : x
  2. Step 2: Convert to fraction form
    11,965.35/17,939.07 = 8,256.99/x
  3. Step 3: Cross multiply
    11,965.35x = 17,939.07 × 8,256.99
  4. Step 4: Simplify right side
    11,965.35x = 148,122,721.60
  5. Step 5: Solve for x
    x = 148,122,721.60/11,965.35
  6. Step 6: Final answer
    x = 12,379.31

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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.