Home / 8,778.48-13,174.20-7,067.76

Finding the Fourth Proportional to 8,778.48, 13,174.20 and 7,067.76

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Solution

The fourth proportional to 8,778.48, 13,174.20 and 7,067.76 is: 10,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.48 : 13,174.20 = 7,067.76 : x
  2. Step 2: Convert to fraction form
    8,778.48/13,174.20 = 7,067.76/x
  3. Step 3: Cross multiply
    8,778.48x = 13,174.20 × 7,067.76
  4. Step 4: Simplify right side
    8,778.48x = 93,112,083.79
  5. Step 5: Solve for x
    x = 93,112,083.79/8,778.48
  6. Step 6: Final answer
    x = 10,606.86

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1.5x scale

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.