Home / 6,391.21-9,575.28-5,350.09

Finding the Fourth Proportional to 6,391.21, 9,575.28 and 5,350.09

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Solution

The fourth proportional to 6,391.21, 9,575.28 and 5,350.09 is: 8,015.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.21 : 9,575.28 = 5,350.09 : x
  2. Step 2: Convert to fraction form
    6,391.21/9,575.28 = 5,350.09/x
  3. Step 3: Cross multiply
    6,391.21x = 9,575.28 × 5,350.09
  4. Step 4: Simplify right side
    6,391.21x = 51,228,609.78
  5. Step 5: Solve for x
    x = 51,228,609.78/6,391.21
  6. Step 6: Final answer
    x = 8,015.48

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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.