Home / 14,279.06-19,704.66-7,991.48

Finding the Fourth Proportional to 14,279.06, 19,704.66 and 7,991.48

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Solution

The fourth proportional to 14,279.06, 19,704.66 and 7,991.48 is: 11,027.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.06 : 19,704.66 = 7,991.48 : x
  2. Step 2: Convert to fraction form
    14,279.06/19,704.66 = 7,991.48/x
  3. Step 3: Cross multiply
    14,279.06x = 19,704.66 × 7,991.48
  4. Step 4: Simplify right side
    14,279.06x = 157,469,396.30
  5. Step 5: Solve for x
    x = 157,469,396.30/14,279.06
  6. Step 6: Final answer
    x = 11,027.99

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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.