Home / 12,379.25-17,083.37-6,790.13

Finding the Fourth Proportional to 12,379.25, 17,083.37 and 6,790.13

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Solution

The fourth proportional to 12,379.25, 17,083.37 and 6,790.13 is: 9,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.25 : 17,083.37 = 6,790.13 : x
  2. Step 2: Convert to fraction form
    12,379.25/17,083.37 = 6,790.13/x
  3. Step 3: Cross multiply
    12,379.25x = 17,083.37 × 6,790.13
  4. Step 4: Simplify right side
    12,379.25x = 115,998,269.19
  5. Step 5: Solve for x
    x = 115,998,269.19/12,379.25
  6. Step 6: Final answer
    x = 9,370.38

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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.