Home / 11,929.82-17,974.16-10,805.54

Finding the Fourth Proportional to 11,929.82, 17,974.16 and 10,805.54

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Solution

The fourth proportional to 11,929.82, 17,974.16 and 10,805.54 is: 16,280.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.82 : 17,974.16 = 10,805.54 : x
  2. Step 2: Convert to fraction form
    11,929.82/17,974.16 = 10,805.54/x
  3. Step 3: Cross multiply
    11,929.82x = 17,974.16 × 10,805.54
  4. Step 4: Simplify right side
    11,929.82x = 194,220,504.85
  5. Step 5: Solve for x
    x = 194,220,504.85/11,929.82
  6. Step 6: Final answer
    x = 16,280.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.