Home / 13,608.25-20,413.67-5,288.91

Finding the Fourth Proportional to 13,608.25, 20,413.67 and 5,288.91

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Solution

The fourth proportional to 13,608.25, 20,413.67 and 5,288.91 is: 7,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.25 : 20,413.67 = 5,288.91 : x
  2. Step 2: Convert to fraction form
    13,608.25/20,413.67 = 5,288.91/x
  3. Step 3: Cross multiply
    13,608.25x = 20,413.67 × 5,288.91
  4. Step 4: Simplify right side
    13,608.25x = 107,966,036.96
  5. Step 5: Solve for x
    x = 107,966,036.96/13,608.25
  6. Step 6: Final answer
    x = 7,933.87

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1.5x scale

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.