Home / 12,796.40-19,194.60-8,859.80

Finding the Fourth Proportional to 12,796.40, 19,194.60 and 8,859.80

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Solution

The fourth proportional to 12,796.40, 19,194.60 and 8,859.80 is: 13,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.40 : 19,194.60 = 8,859.80 : x
  2. Step 2: Convert to fraction form
    12,796.40/19,194.60 = 8,859.80/x
  3. Step 3: Cross multiply
    12,796.40x = 19,194.60 × 8,859.80
  4. Step 4: Simplify right side
    12,796.40x = 170,060,317.08
  5. Step 5: Solve for x
    x = 170,060,317.08/12,796.40
  6. Step 6: Final answer
    x = 13,289.70

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Similar ratio
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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.