Home / 12,396.96-17,101.80-8,208.72

Finding the Fourth Proportional to 12,396.96, 17,101.80 and 8,208.72

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Solution

The fourth proportional to 12,396.96, 17,101.80 and 8,208.72 is: 11,324.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396.96 : 17,101.80 = 8,208.72 : x
  2. Step 2: Convert to fraction form
    12,396.96/17,101.80 = 8,208.72/x
  3. Step 3: Cross multiply
    12,396.96x = 17,101.80 × 8,208.72
  4. Step 4: Simplify right side
    12,396.96x = 140,383,887.70
  5. Step 5: Solve for x
    x = 140,383,887.70/12,396.96
  6. Step 6: Final answer
    x = 11,324.06

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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.