Home / 8,167.98-11,261.85-6,906.78

Finding the Fourth Proportional to 8,167.98, 11,261.85 and 6,906.78

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Solution

The fourth proportional to 8,167.98, 11,261.85 and 6,906.78 is: 9,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.98 : 11,261.85 = 6,906.78 : x
  2. Step 2: Convert to fraction form
    8,167.98/11,261.85 = 6,906.78/x
  3. Step 3: Cross multiply
    8,167.98x = 11,261.85 × 6,906.78
  4. Step 4: Simplify right side
    8,167.98x = 77,783,120.34
  5. Step 5: Solve for x
    x = 77,783,120.34/8,167.98
  6. Step 6: Final answer
    x = 9,522.93

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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.