Home / 8,181.88-12,274.80-2,635.75

Finding the Fourth Proportional to 8,181.88, 12,274.80 and 2,635.75

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Solution

The fourth proportional to 8,181.88, 12,274.80 and 2,635.75 is: 3,954.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.88 : 12,274.80 = 2,635.75 : x
  2. Step 2: Convert to fraction form
    8,181.88/12,274.80 = 2,635.75/x
  3. Step 3: Cross multiply
    8,181.88x = 12,274.80 × 2,635.75
  4. Step 4: Simplify right side
    8,181.88x = 32,353,304.10
  5. Step 5: Solve for x
    x = 32,353,304.10/8,181.88
  6. Step 6: Final answer
    x = 3,954.26

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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.