Home / 12,181.00-18,270.30-8,257.46

Finding the Fourth Proportional to 12,181.00, 18,270.30 and 8,257.46

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Solution

The fourth proportional to 12,181.00, 18,270.30 and 8,257.46 is: 12,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.00 : 18,270.30 = 8,257.46 : x
  2. Step 2: Convert to fraction form
    12,181.00/18,270.30 = 8,257.46/x
  3. Step 3: Cross multiply
    12,181.00x = 18,270.30 × 8,257.46
  4. Step 4: Simplify right side
    12,181.00x = 150,866,234.64
  5. Step 5: Solve for x
    x = 150,866,234.64/12,181.00
  6. Step 6: Final answer
    x = 12,385.38

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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.