Home / 12,025.78-18,042.30-8,522.56

Finding the Fourth Proportional to 12,025.78, 18,042.30 and 8,522.56

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Solution

The fourth proportional to 12,025.78, 18,042.30 and 8,522.56 is: 12,786.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,025.78 : 18,042.30 = 8,522.56 : x
  2. Step 2: Convert to fraction form
    12,025.78/18,042.30 = 8,522.56/x
  3. Step 3: Cross multiply
    12,025.78x = 18,042.30 × 8,522.56
  4. Step 4: Simplify right side
    12,025.78x = 153,766,539.18
  5. Step 5: Solve for x
    x = 153,766,539.18/12,025.78
  6. Step 6: Final answer
    x = 12,786.41

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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.