Home / 12,845.80-19,269.98-3,485.97

Finding the Fourth Proportional to 12,845.80, 19,269.98 and 3,485.97

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Solution

The fourth proportional to 12,845.80, 19,269.98 and 3,485.97 is: 5,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.80 : 19,269.98 = 3,485.97 : x
  2. Step 2: Convert to fraction form
    12,845.80/19,269.98 = 3,485.97/x
  3. Step 3: Cross multiply
    12,845.80x = 19,269.98 × 3,485.97
  4. Step 4: Simplify right side
    12,845.80x = 67,174,458.40
  5. Step 5: Solve for x
    x = 67,174,458.40/12,845.80
  6. Step 6: Final answer
    x = 5,229.30

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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.