Home / 10,340.21-15,519.26-5,413.29

Finding the Fourth Proportional to 10,340.21, 15,519.26 and 5,413.29

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Solution

The fourth proportional to 10,340.21, 15,519.26 and 5,413.29 is: 8,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.21 : 15,519.26 = 5,413.29 : x
  2. Step 2: Convert to fraction form
    10,340.21/15,519.26 = 5,413.29/x
  3. Step 3: Cross multiply
    10,340.21x = 15,519.26 × 5,413.29
  4. Step 4: Simplify right side
    10,340.21x = 84,010,268.50
  5. Step 5: Solve for x
    x = 84,010,268.50/10,340.21
  6. Step 6: Final answer
    x = 8,124.62

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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.