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Finding the Fourth Proportional to 7,413.82, 11,119.89 and 1,867.16

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Solution

The fourth proportional to 7,413.82, 11,119.89 and 1,867.16 is: 2,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.82 : 11,119.89 = 1,867.16 : x
  2. Step 2: Convert to fraction form
    7,413.82/11,119.89 = 1,867.16/x
  3. Step 3: Cross multiply
    7,413.82x = 11,119.89 × 1,867.16
  4. Step 4: Simplify right side
    7,413.82x = 20,762,613.81
  5. Step 5: Solve for x
    x = 20,762,613.81/7,413.82
  6. Step 6: Final answer
    x = 2,800.53

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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.