Home / 8,181.40-12,271.18-2,258.73

Finding the Fourth Proportional to 8,181.40, 12,271.18 and 2,258.73

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Solution

The fourth proportional to 8,181.40, 12,271.18 and 2,258.73 is: 3,387.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.40 : 12,271.18 = 2,258.73 : x
  2. Step 2: Convert to fraction form
    8,181.40/12,271.18 = 2,258.73/x
  3. Step 3: Cross multiply
    8,181.40x = 12,271.18 × 2,258.73
  4. Step 4: Simplify right side
    8,181.40x = 27,717,234.97
  5. Step 5: Solve for x
    x = 27,717,234.97/8,181.40
  6. Step 6: Final answer
    x = 3,387.84

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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.