Home / 8,367.21-11,540.37-6,128.28

Finding the Fourth Proportional to 8,367.21, 11,540.37 and 6,128.28

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Solution

The fourth proportional to 8,367.21, 11,540.37 and 6,128.28 is: 8,452.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.21 : 11,540.37 = 6,128.28 : x
  2. Step 2: Convert to fraction form
    8,367.21/11,540.37 = 6,128.28/x
  3. Step 3: Cross multiply
    8,367.21x = 11,540.37 × 6,128.28
  4. Step 4: Simplify right side
    8,367.21x = 70,722,618.66
  5. Step 5: Solve for x
    x = 70,722,618.66/8,367.21
  6. Step 6: Final answer
    x = 8,452.35

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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.