Home / 12,290.22-16,961.16-7,257.36

Finding the Fourth Proportional to 12,290.22, 16,961.16 and 7,257.36

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Solution

The fourth proportional to 12,290.22, 16,961.16 and 7,257.36 is: 10,015.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.22 : 16,961.16 = 7,257.36 : x
  2. Step 2: Convert to fraction form
    12,290.22/16,961.16 = 7,257.36/x
  3. Step 3: Cross multiply
    12,290.22x = 16,961.16 × 7,257.36
  4. Step 4: Simplify right side
    12,290.22x = 123,093,244.14
  5. Step 5: Solve for x
    x = 123,093,244.14/12,290.22
  6. Step 6: Final answer
    x = 10,015.54

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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.