Home / 10,256.00-15,383.97-7,919.42

Finding the Fourth Proportional to 10,256.00, 15,383.97 and 7,919.42

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Solution

The fourth proportional to 10,256.00, 15,383.97 and 7,919.42 is: 11,879.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.00 : 15,383.97 = 7,919.42 : x
  2. Step 2: Convert to fraction form
    10,256.00/15,383.97 = 7,919.42/x
  3. Step 3: Cross multiply
    10,256.00x = 15,383.97 × 7,919.42
  4. Step 4: Simplify right side
    10,256.00x = 121,832,042.78
  5. Step 5: Solve for x
    x = 121,832,042.78/10,256.00
  6. Step 6: Final answer
    x = 11,879.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.