Home / 7,851.20-11,833.26-6,768.64

Finding the Fourth Proportional to 7,851.20, 11,833.26 and 6,768.64

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Solution

The fourth proportional to 7,851.20, 11,833.26 and 6,768.64 is: 10,201.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.20 : 11,833.26 = 6,768.64 : x
  2. Step 2: Convert to fraction form
    7,851.20/11,833.26 = 6,768.64/x
  3. Step 3: Cross multiply
    7,851.20x = 11,833.26 × 6,768.64
  4. Step 4: Simplify right side
    7,851.20x = 80,095,076.97
  5. Step 5: Solve for x
    x = 80,095,076.97/7,851.20
  6. Step 6: Final answer
    x = 10,201.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.