Home / 9,190.11-12,681.96-5,413.43

Finding the Fourth Proportional to 9,190.11, 12,681.96 and 5,413.43

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Solution

The fourth proportional to 9,190.11, 12,681.96 and 5,413.43 is: 7,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.11 : 12,681.96 = 5,413.43 : x
  2. Step 2: Convert to fraction form
    9,190.11/12,681.96 = 5,413.43/x
  3. Step 3: Cross multiply
    9,190.11x = 12,681.96 × 5,413.43
  4. Step 4: Simplify right side
    9,190.11x = 68,652,902.72
  5. Step 5: Solve for x
    x = 68,652,902.72/9,190.11
  6. Step 6: Final answer
    x = 7,470.30

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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.