Home / 15,481.73-21,372.66-9,822.26

Finding the Fourth Proportional to 15,481.73, 21,372.66 and 9,822.26

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Solution

The fourth proportional to 15,481.73, 21,372.66 and 9,822.26 is: 13,559.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.73 : 21,372.66 = 9,822.26 : x
  2. Step 2: Convert to fraction form
    15,481.73/21,372.66 = 9,822.26/x
  3. Step 3: Cross multiply
    15,481.73x = 21,372.66 × 9,822.26
  4. Step 4: Simplify right side
    15,481.73x = 209,927,876.84
  5. Step 5: Solve for x
    x = 209,927,876.84/15,481.73
  6. Step 6: Final answer
    x = 13,559.71

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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.