Home / 18,940.89-28,386.33-7,832.28

Finding the Fourth Proportional to 18,940.89, 28,386.33 and 7,832.28

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Solution

The fourth proportional to 18,940.89, 28,386.33 and 7,832.28 is: 11,738.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.89 : 28,386.33 = 7,832.28 : x
  2. Step 2: Convert to fraction form
    18,940.89/28,386.33 = 7,832.28/x
  3. Step 3: Cross multiply
    18,940.89x = 28,386.33 × 7,832.28
  4. Step 4: Simplify right side
    18,940.89x = 222,329,684.73
  5. Step 5: Solve for x
    x = 222,329,684.73/18,940.89
  6. Step 6: Final answer
    x = 11,738.08

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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.