Home / 7,623.82-11,428.44-3,243.75

Finding the Fourth Proportional to 7,623.82, 11,428.44 and 3,243.75

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Solution

The fourth proportional to 7,623.82, 11,428.44 and 3,243.75 is: 4,862.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.82 : 11,428.44 = 3,243.75 : x
  2. Step 2: Convert to fraction form
    7,623.82/11,428.44 = 3,243.75/x
  3. Step 3: Cross multiply
    7,623.82x = 11,428.44 × 3,243.75
  4. Step 4: Simplify right side
    7,623.82x = 37,071,002.25
  5. Step 5: Solve for x
    x = 37,071,002.25/7,623.82
  6. Step 6: Final answer
    x = 4,862.52

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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.