Home / 13,776.26-20,665.74-4,413.92

Finding the Fourth Proportional to 13,776.26, 20,665.74 and 4,413.92

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Solution

The fourth proportional to 13,776.26, 20,665.74 and 4,413.92 is: 6,621.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.26 : 20,665.74 = 4,413.92 : x
  2. Step 2: Convert to fraction form
    13,776.26/20,665.74 = 4,413.92/x
  3. Step 3: Cross multiply
    13,776.26x = 20,665.74 × 4,413.92
  4. Step 4: Simplify right side
    13,776.26x = 91,216,819.77
  5. Step 5: Solve for x
    x = 91,216,819.77/13,776.26
  6. Step 6: Final answer
    x = 6,621.31

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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.