Home / 8,521.27-12,778.90-3,257.75

Finding the Fourth Proportional to 8,521.27, 12,778.90 and 3,257.75

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Solution

The fourth proportional to 8,521.27, 12,778.90 and 3,257.75 is: 4,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.27 : 12,778.90 = 3,257.75 : x
  2. Step 2: Convert to fraction form
    8,521.27/12,778.90 = 3,257.75/x
  3. Step 3: Cross multiply
    8,521.27x = 12,778.90 × 3,257.75
  4. Step 4: Simplify right side
    8,521.27x = 41,630,485.28
  5. Step 5: Solve for x
    x = 41,630,485.28/8,521.27
  6. Step 6: Final answer
    x = 4,885.48

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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.