Home / 8,778.48-13,177.85-6,935.73

Finding the Fourth Proportional to 8,778.48, 13,177.85 and 6,935.73

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Solution

The fourth proportional to 8,778.48, 13,177.85 and 6,935.73 is: 10,411.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.48 : 13,177.85 = 6,935.73 : x
  2. Step 2: Convert to fraction form
    8,778.48/13,177.85 = 6,935.73/x
  3. Step 3: Cross multiply
    8,778.48x = 13,177.85 × 6,935.73
  4. Step 4: Simplify right side
    8,778.48x = 91,397,974.90
  5. Step 5: Solve for x
    x = 91,397,974.90/8,778.48
  6. Step 6: Final answer
    x = 10,411.59

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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.