Home / 9,661.37-13,333.80-5,413.58

Finding the Fourth Proportional to 9,661.37, 13,333.80 and 5,413.58

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Solution

The fourth proportional to 9,661.37, 13,333.80 and 5,413.58 is: 7,471.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.37 : 13,333.80 = 5,413.58 : x
  2. Step 2: Convert to fraction form
    9,661.37/13,333.80 = 5,413.58/x
  3. Step 3: Cross multiply
    9,661.37x = 13,333.80 × 5,413.58
  4. Step 4: Simplify right side
    9,661.37x = 72,183,566.19
  5. Step 5: Solve for x
    x = 72,183,566.19/9,661.37
  6. Step 6: Final answer
    x = 7,471.36

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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.