Home / 12,413.96-17,131.04-7,107.75

Finding the Fourth Proportional to 12,413.96, 17,131.04 and 7,107.75

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Solution

The fourth proportional to 12,413.96, 17,131.04 and 7,107.75 is: 9,808.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,413.96 : 17,131.04 = 7,107.75 : x
  2. Step 2: Convert to fraction form
    12,413.96/17,131.04 = 7,107.75/x
  3. Step 3: Cross multiply
    12,413.96x = 17,131.04 × 7,107.75
  4. Step 4: Simplify right side
    12,413.96x = 121,763,180.66
  5. Step 5: Solve for x
    x = 121,763,180.66/12,413.96
  6. Step 6: Final answer
    x = 9,808.57

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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.