Home / 8,765.26-13,147.96-2,921.87

Finding the Fourth Proportional to 8,765.26, 13,147.96 and 2,921.87

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Solution

The fourth proportional to 8,765.26, 13,147.96 and 2,921.87 is: 4,382.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.26 : 13,147.96 = 2,921.87 : x
  2. Step 2: Convert to fraction form
    8,765.26/13,147.96 = 2,921.87/x
  3. Step 3: Cross multiply
    8,765.26x = 13,147.96 × 2,921.87
  4. Step 4: Simplify right side
    8,765.26x = 38,416,556.84
  5. Step 5: Solve for x
    x = 38,416,556.84/8,765.26
  6. Step 6: Final answer
    x = 4,382.82

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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.