Home / 16,990.36-25,485.74-5,144.21

Finding the Fourth Proportional to 16,990.36, 25,485.74 and 5,144.21

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Solution

The fourth proportional to 16,990.36, 25,485.74 and 5,144.21 is: 7,716.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.36 : 25,485.74 = 5,144.21 : x
  2. Step 2: Convert to fraction form
    16,990.36/25,485.74 = 5,144.21/x
  3. Step 3: Cross multiply
    16,990.36x = 25,485.74 × 5,144.21
  4. Step 4: Simplify right side
    16,990.36x = 131,103,960.28
  5. Step 5: Solve for x
    x = 131,103,960.28/16,990.36
  6. Step 6: Final answer
    x = 7,716.37

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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.