Home / 11,845.60-17,768.40-6,650.80

Finding the Fourth Proportional to 11,845.60, 17,768.40 and 6,650.80

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Solution

The fourth proportional to 11,845.60, 17,768.40 and 6,650.80 is: 9,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.60 : 17,768.40 = 6,650.80 : x
  2. Step 2: Convert to fraction form
    11,845.60/17,768.40 = 6,650.80/x
  3. Step 3: Cross multiply
    11,845.60x = 17,768.40 × 6,650.80
  4. Step 4: Simplify right side
    11,845.60x = 118,174,074.72
  5. Step 5: Solve for x
    x = 118,174,074.72/11,845.60
  6. Step 6: Final answer
    x = 9,976.20

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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.