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Finding the Fourth Proportional to 8,635.44, 12,955.44 and 3,089.34

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Solution

The fourth proportional to 8,635.44, 12,955.44 and 3,089.34 is: 4,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.44 : 12,955.44 = 3,089.34 : x
  2. Step 2: Convert to fraction form
    8,635.44/12,955.44 = 3,089.34/x
  3. Step 3: Cross multiply
    8,635.44x = 12,955.44 × 3,089.34
  4. Step 4: Simplify right side
    8,635.44x = 40,023,759.01
  5. Step 5: Solve for x
    x = 40,023,759.01/8,635.44
  6. Step 6: Final answer
    x = 4,634.83

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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.