Home / 15,127.28-20,876.43-8,413.04

Finding the Fourth Proportional to 15,127.28, 20,876.43 and 8,413.04

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Solution

The fourth proportional to 15,127.28, 20,876.43 and 8,413.04 is: 11,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.28 : 20,876.43 = 8,413.04 : x
  2. Step 2: Convert to fraction form
    15,127.28/20,876.43 = 8,413.04/x
  3. Step 3: Cross multiply
    15,127.28x = 20,876.43 × 8,413.04
  4. Step 4: Simplify right side
    15,127.28x = 175,634,240.65
  5. Step 5: Solve for x
    x = 175,634,240.65/15,127.28
  6. Step 6: Final answer
    x = 11,610.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.