Home / 12,450.78-18,670.59-3,682.62

Finding the Fourth Proportional to 12,450.78, 18,670.59 and 3,682.62

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Solution

The fourth proportional to 12,450.78, 18,670.59 and 3,682.62 is: 5,522.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.78 : 18,670.59 = 3,682.62 : x
  2. Step 2: Convert to fraction form
    12,450.78/18,670.59 = 3,682.62/x
  3. Step 3: Cross multiply
    12,450.78x = 18,670.59 × 3,682.62
  4. Step 4: Simplify right side
    12,450.78x = 68,756,688.15
  5. Step 5: Solve for x
    x = 68,756,688.15/12,450.78
  6. Step 6: Final answer
    x = 5,522.28

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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.