Home / 12,779.37-19,169.06-11,949.22

Finding the Fourth Proportional to 12,779.37, 19,169.06 and 11,949.22

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Solution

The fourth proportional to 12,779.37, 19,169.06 and 11,949.22 is: 17,923.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.37 : 19,169.06 = 11,949.22 : x
  2. Step 2: Convert to fraction form
    12,779.37/19,169.06 = 11,949.22/x
  3. Step 3: Cross multiply
    12,779.37x = 19,169.06 × 11,949.22
  4. Step 4: Simplify right side
    12,779.37x = 229,055,279.35
  5. Step 5: Solve for x
    x = 229,055,279.35/12,779.37
  6. Step 6: Final answer
    x = 17,923.83

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Similar ratio
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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.