Home / 15,383.73-21,229.92-8,669.58

Finding the Fourth Proportional to 15,383.73, 21,229.92 and 8,669.58

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Solution

The fourth proportional to 15,383.73, 21,229.92 and 8,669.58 is: 11,964.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.73 : 21,229.92 = 8,669.58 : x
  2. Step 2: Convert to fraction form
    15,383.73/21,229.92 = 8,669.58/x
  3. Step 3: Cross multiply
    15,383.73x = 21,229.92 × 8,669.58
  4. Step 4: Simplify right side
    15,383.73x = 184,054,489.83
  5. Step 5: Solve for x
    x = 184,054,489.83/15,383.73
  6. Step 6: Final answer
    x = 11,964.23

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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.