Home / 8,539.22-12,809.68-3,540.58

Finding the Fourth Proportional to 8,539.22, 12,809.68 and 3,540.58

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Solution

The fourth proportional to 8,539.22, 12,809.68 and 3,540.58 is: 5,311.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.22 : 12,809.68 = 3,540.58 : x
  2. Step 2: Convert to fraction form
    8,539.22/12,809.68 = 3,540.58/x
  3. Step 3: Cross multiply
    8,539.22x = 12,809.68 × 3,540.58
  4. Step 4: Simplify right side
    8,539.22x = 45,353,655.94
  5. Step 5: Solve for x
    x = 45,353,655.94/8,539.22
  6. Step 6: Final answer
    x = 5,311.22

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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.