Home / 8,360.58-12,540.96-2,120.43

Finding the Fourth Proportional to 8,360.58, 12,540.96 and 2,120.43

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Solution

The fourth proportional to 8,360.58, 12,540.96 and 2,120.43 is: 3,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.58 : 12,540.96 = 2,120.43 : x
  2. Step 2: Convert to fraction form
    8,360.58/12,540.96 = 2,120.43/x
  3. Step 3: Cross multiply
    8,360.58x = 12,540.96 × 2,120.43
  4. Step 4: Simplify right side
    8,360.58x = 26,592,204.30
  5. Step 5: Solve for x
    x = 26,592,204.30/8,360.58
  6. Step 6: Final answer
    x = 3,180.66

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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.