Home / 13,413.62-20,117.57-5,090.69

Finding the Fourth Proportional to 13,413.62, 20,117.57 and 5,090.69

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Solution

The fourth proportional to 13,413.62, 20,117.57 and 5,090.69 is: 7,634.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.62 : 20,117.57 = 5,090.69 : x
  2. Step 2: Convert to fraction form
    13,413.62/20,117.57 = 5,090.69/x
  3. Step 3: Cross multiply
    13,413.62x = 20,117.57 × 5,090.69
  4. Step 4: Simplify right side
    13,413.62x = 102,412,186.38
  5. Step 5: Solve for x
    x = 102,412,186.38/13,413.62
  6. Step 6: Final answer
    x = 7,634.94

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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.