Home / 15,325.36-21,147.82-8,608.84

Finding the Fourth Proportional to 15,325.36, 21,147.82 and 8,608.84

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Solution

The fourth proportional to 15,325.36, 21,147.82 and 8,608.84 is: 11,879.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.36 : 21,147.82 = 8,608.84 : x
  2. Step 2: Convert to fraction form
    15,325.36/21,147.82 = 8,608.84/x
  3. Step 3: Cross multiply
    15,325.36x = 21,147.82 × 8,608.84
  4. Step 4: Simplify right side
    15,325.36x = 182,058,198.73
  5. Step 5: Solve for x
    x = 182,058,198.73/15,325.36
  6. Step 6: Final answer
    x = 11,879.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.