Home / 7,851.31-11,757.39-5,500.28

Finding the Fourth Proportional to 7,851.31, 11,757.39 and 5,500.28

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Solution

The fourth proportional to 7,851.31, 11,757.39 and 5,500.28 is: 8,236.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,851.31 : 11,757.39 = 5,500.28 : x
  2. Step 2: Convert to fraction form
    7,851.31/11,757.39 = 5,500.28/x
  3. Step 3: Cross multiply
    7,851.31x = 11,757.39 × 5,500.28
  4. Step 4: Simplify right side
    7,851.31x = 64,668,945.84
  5. Step 5: Solve for x
    x = 64,668,945.84/7,851.31
  6. Step 6: Final answer
    x = 8,236.71

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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.