Home / 16,912.80-25,369.20-5,229.60

Finding the Fourth Proportional to 16,912.80, 25,369.20 and 5,229.60

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Solution

The fourth proportional to 16,912.80, 25,369.20 and 5,229.60 is: 7,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.80 : 25,369.20 = 5,229.60 : x
  2. Step 2: Convert to fraction form
    16,912.80/25,369.20 = 5,229.60/x
  3. Step 3: Cross multiply
    16,912.80x = 25,369.20 × 5,229.60
  4. Step 4: Simplify right side
    16,912.80x = 132,670,768.32
  5. Step 5: Solve for x
    x = 132,670,768.32/16,912.80
  6. Step 6: Final answer
    x = 7,844.40

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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.