Home / 12,072.79-18,106.39-3,308.41

Finding the Fourth Proportional to 12,072.79, 18,106.39 and 3,308.41

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Solution

The fourth proportional to 12,072.79, 18,106.39 and 3,308.41 is: 4,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.79 : 18,106.39 = 3,308.41 : x
  2. Step 2: Convert to fraction form
    12,072.79/18,106.39 = 3,308.41/x
  3. Step 3: Cross multiply
    12,072.79x = 18,106.39 × 3,308.41
  4. Step 4: Simplify right side
    12,072.79x = 59,903,361.74
  5. Step 5: Solve for x
    x = 59,903,361.74/12,072.79
  6. Step 6: Final answer
    x = 4,961.85

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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.