Home / 9,661.32-13,333.69-5,413.07

Finding the Fourth Proportional to 9,661.32, 13,333.69 and 5,413.07

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Solution

The fourth proportional to 9,661.32, 13,333.69 and 5,413.07 is: 7,470.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.32 : 13,333.69 = 5,413.07 : x
  2. Step 2: Convert to fraction form
    9,661.32/13,333.69 = 5,413.07/x
  3. Step 3: Cross multiply
    9,661.32x = 13,333.69 × 5,413.07
  4. Step 4: Simplify right side
    9,661.32x = 72,176,217.13
  5. Step 5: Solve for x
    x = 72,176,217.13/9,661.32
  6. Step 6: Final answer
    x = 7,470.64

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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.