Home / 9,189.92-12,681.70-5,413.25

Finding the Fourth Proportional to 9,189.92, 12,681.70 and 5,413.25

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Solution

The fourth proportional to 9,189.92, 12,681.70 and 5,413.25 is: 7,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.92 : 12,681.70 = 5,413.25 : x
  2. Step 2: Convert to fraction form
    9,189.92/12,681.70 = 5,413.25/x
  3. Step 3: Cross multiply
    9,189.92x = 12,681.70 × 5,413.25
  4. Step 4: Simplify right side
    9,189.92x = 68,649,230.70
  5. Step 5: Solve for x
    x = 68,649,230.70/9,189.92
  6. Step 6: Final answer
    x = 7,470.06

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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.