Home / 8,261.34-12,396.06-3,879.18

Finding the Fourth Proportional to 8,261.34, 12,396.06 and 3,879.18

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Solution

The fourth proportional to 8,261.34, 12,396.06 and 3,879.18 is: 5,820.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.34 : 12,396.06 = 3,879.18 : x
  2. Step 2: Convert to fraction form
    8,261.34/12,396.06 = 3,879.18/x
  3. Step 3: Cross multiply
    8,261.34x = 12,396.06 × 3,879.18
  4. Step 4: Simplify right side
    8,261.34x = 48,086,548.03
  5. Step 5: Solve for x
    x = 48,086,548.03/8,261.34
  6. Step 6: Final answer
    x = 5,820.67

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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.