Home / 9,131.76-13,682.97-8,256.96

Finding the Fourth Proportional to 9,131.76, 13,682.97 and 8,256.96

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Solution

The fourth proportional to 9,131.76, 13,682.97 and 8,256.96 is: 12,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.76 : 13,682.97 = 8,256.96 : x
  2. Step 2: Convert to fraction form
    9,131.76/13,682.97 = 8,256.96/x
  3. Step 3: Cross multiply
    9,131.76x = 13,682.97 × 8,256.96
  4. Step 4: Simplify right side
    9,131.76x = 112,979,735.97
  5. Step 5: Solve for x
    x = 112,979,735.97/9,131.76
  6. Step 6: Final answer
    x = 12,372.18

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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.