Home / 11,868.67-17,770.57-8,540.23

Finding the Fourth Proportional to 11,868.67, 17,770.57 and 8,540.23

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Solution

The fourth proportional to 11,868.67, 17,770.57 and 8,540.23 is: 12,787.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.67 : 17,770.57 = 8,540.23 : x
  2. Step 2: Convert to fraction form
    11,868.67/17,770.57 = 8,540.23/x
  3. Step 3: Cross multiply
    11,868.67x = 17,770.57 × 8,540.23
  4. Step 4: Simplify right side
    11,868.67x = 151,764,755.03
  5. Step 5: Solve for x
    x = 151,764,755.03/11,868.67
  6. Step 6: Final answer
    x = 12,787.01

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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.