Home / 13,274.92-19,912.35-3,915.03

Finding the Fourth Proportional to 13,274.92, 19,912.35 and 3,915.03

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Solution

The fourth proportional to 13,274.92, 19,912.35 and 3,915.03 is: 5,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.92 : 19,912.35 = 3,915.03 : x
  2. Step 2: Convert to fraction form
    13,274.92/19,912.35 = 3,915.03/x
  3. Step 3: Cross multiply
    13,274.92x = 19,912.35 × 3,915.03
  4. Step 4: Simplify right side
    13,274.92x = 77,957,523.21
  5. Step 5: Solve for x
    x = 77,957,523.21/13,274.92
  6. Step 6: Final answer
    x = 5,872.54

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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.