Home / 15,383.60-21,229.45-8,669.33

Finding the Fourth Proportional to 15,383.60, 21,229.45 and 8,669.33

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Solution

The fourth proportional to 15,383.60, 21,229.45 and 8,669.33 is: 11,963.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.60 : 21,229.45 = 8,669.33 : x
  2. Step 2: Convert to fraction form
    15,383.60/21,229.45 = 8,669.33/x
  3. Step 3: Cross multiply
    15,383.60x = 21,229.45 × 8,669.33
  4. Step 4: Simplify right side
    15,383.60x = 184,045,107.77
  5. Step 5: Solve for x
    x = 184,045,107.77/15,383.60
  6. Step 6: Final answer
    x = 11,963.72

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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.