Home / 12,485.25-17,229.69-6,896.25

Finding the Fourth Proportional to 12,485.25, 17,229.69 and 6,896.25

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Solution

The fourth proportional to 12,485.25, 17,229.69 and 6,896.25 is: 9,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.25 : 17,229.69 = 6,896.25 : x
  2. Step 2: Convert to fraction form
    12,485.25/17,229.69 = 6,896.25/x
  3. Step 3: Cross multiply
    12,485.25x = 17,229.69 × 6,896.25
  4. Step 4: Simplify right side
    12,485.25x = 118,820,249.66
  5. Step 5: Solve for x
    x = 118,820,249.66/12,485.25
  6. Step 6: Final answer
    x = 9,516.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.