Home / 8,291.76-11,431.37-5,634.56

Finding the Fourth Proportional to 8,291.76, 11,431.37 and 5,634.56

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Solution

The fourth proportional to 8,291.76, 11,431.37 and 5,634.56 is: 7,768.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.76 : 11,431.37 = 5,634.56 : x
  2. Step 2: Convert to fraction form
    8,291.76/11,431.37 = 5,634.56/x
  3. Step 3: Cross multiply
    8,291.76x = 11,431.37 × 5,634.56
  4. Step 4: Simplify right side
    8,291.76x = 64,410,654.82
  5. Step 5: Solve for x
    x = 64,410,654.82/8,291.76
  6. Step 6: Final answer
    x = 7,768.03

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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.