Home / 11,972.22-17,942.49-9,188.25

Finding the Fourth Proportional to 11,972.22, 17,942.49 and 9,188.25

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Solution

The fourth proportional to 11,972.22, 17,942.49 and 9,188.25 is: 13,770.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.22 : 17,942.49 = 9,188.25 : x
  2. Step 2: Convert to fraction form
    11,972.22/17,942.49 = 9,188.25/x
  3. Step 3: Cross multiply
    11,972.22x = 17,942.49 × 9,188.25
  4. Step 4: Simplify right side
    11,972.22x = 164,860,083.74
  5. Step 5: Solve for x
    x = 164,860,083.74/11,972.22
  6. Step 6: Final answer
    x = 13,770.22

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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.