Home / 12,450.45-18,679.33-3,685.59

Finding the Fourth Proportional to 12,450.45, 18,679.33 and 3,685.59

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Solution

The fourth proportional to 12,450.45, 18,679.33 and 3,685.59 is: 5,529.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.45 : 18,679.33 = 3,685.59 : x
  2. Step 2: Convert to fraction form
    12,450.45/18,679.33 = 3,685.59/x
  3. Step 3: Cross multiply
    12,450.45x = 18,679.33 × 3,685.59
  4. Step 4: Simplify right side
    12,450.45x = 68,844,342.64
  5. Step 5: Solve for x
    x = 68,844,342.64/12,450.45
  6. Step 6: Final answer
    x = 5,529.47

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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.