Home / 8,127.40-12,198.30-4,181.44

Finding the Fourth Proportional to 8,127.40, 12,198.30 and 4,181.44

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Solution

The fourth proportional to 8,127.40, 12,198.30 and 4,181.44 is: 6,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.40 : 12,198.30 = 4,181.44 : x
  2. Step 2: Convert to fraction form
    8,127.40/12,198.30 = 4,181.44/x
  3. Step 3: Cross multiply
    8,127.40x = 12,198.30 × 4,181.44
  4. Step 4: Simplify right side
    8,127.40x = 51,006,459.55
  5. Step 5: Solve for x
    x = 51,006,459.55/8,127.40
  6. Step 6: Final answer
    x = 6,275.86

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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.