Home / 12,558.66-17,327.97-8,083.86

Finding the Fourth Proportional to 12,558.66, 17,327.97 and 8,083.86

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Solution

The fourth proportional to 12,558.66, 17,327.97 and 8,083.86 is: 11,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.66 : 17,327.97 = 8,083.86 : x
  2. Step 2: Convert to fraction form
    12,558.66/17,327.97 = 8,083.86/x
  3. Step 3: Cross multiply
    12,558.66x = 17,327.97 × 8,083.86
  4. Step 4: Simplify right side
    12,558.66x = 140,076,883.56
  5. Step 5: Solve for x
    x = 140,076,883.56/12,558.66
  6. Step 6: Final answer
    x = 11,153.81

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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.