Home / 11,588.19-15,991.42-6,413.90

Finding the Fourth Proportional to 11,588.19, 15,991.42 and 6,413.90

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Solution

The fourth proportional to 11,588.19, 15,991.42 and 6,413.90 is: 8,851.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,588.19 : 15,991.42 = 6,413.90 : x
  2. Step 2: Convert to fraction form
    11,588.19/15,991.42 = 6,413.90/x
  3. Step 3: Cross multiply
    11,588.19x = 15,991.42 × 6,413.90
  4. Step 4: Simplify right side
    11,588.19x = 102,567,378.76
  5. Step 5: Solve for x
    x = 102,567,378.76/11,588.19
  6. Step 6: Final answer
    x = 8,851.03

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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.