Home / 8,360.24-12,540.38-2,120.26

Finding the Fourth Proportional to 8,360.24, 12,540.38 and 2,120.26

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Solution

The fourth proportional to 8,360.24, 12,540.38 and 2,120.26 is: 3,180.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.24 : 12,540.38 = 2,120.26 : x
  2. Step 2: Convert to fraction form
    8,360.24/12,540.38 = 2,120.26/x
  3. Step 3: Cross multiply
    8,360.24x = 12,540.38 × 2,120.26
  4. Step 4: Simplify right side
    8,360.24x = 26,588,830.28
  5. Step 5: Solve for x
    x = 26,588,830.28/8,360.24
  6. Step 6: Final answer
    x = 3,180.39

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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.