Home / 7,486.40-11,221.50-3,972.62

Finding the Fourth Proportional to 7,486.40, 11,221.50 and 3,972.62

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Solution

The fourth proportional to 7,486.40, 11,221.50 and 3,972.62 is: 5,954.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.40 : 11,221.50 = 3,972.62 : x
  2. Step 2: Convert to fraction form
    7,486.40/11,221.50 = 3,972.62/x
  3. Step 3: Cross multiply
    7,486.40x = 11,221.50 × 3,972.62
  4. Step 4: Simplify right side
    7,486.40x = 44,578,755.33
  5. Step 5: Solve for x
    x = 44,578,755.33/7,486.40
  6. Step 6: Final answer
    x = 5,954.63

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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.