Home / 11,279.12-16,918.44-3,071.12

Finding the Fourth Proportional to 11,279.12, 16,918.44 and 3,071.12

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Solution

The fourth proportional to 11,279.12, 16,918.44 and 3,071.12 is: 4,606.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.12 : 16,918.44 = 3,071.12 : x
  2. Step 2: Convert to fraction form
    11,279.12/16,918.44 = 3,071.12/x
  3. Step 3: Cross multiply
    11,279.12x = 16,918.44 × 3,071.12
  4. Step 4: Simplify right side
    11,279.12x = 51,958,559.45
  5. Step 5: Solve for x
    x = 51,958,559.45/11,279.12
  6. Step 6: Final answer
    x = 4,606.61

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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.