Home / 14,380.28-19,840.91-8,413.41

Finding the Fourth Proportional to 14,380.28, 19,840.91 and 8,413.41

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Solution

The fourth proportional to 14,380.28, 19,840.91 and 8,413.41 is: 11,608.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,380.28 : 19,840.91 = 8,413.41 : x
  2. Step 2: Convert to fraction form
    14,380.28/19,840.91 = 8,413.41/x
  3. Step 3: Cross multiply
    14,380.28x = 19,840.91 × 8,413.41
  4. Step 4: Simplify right side
    14,380.28x = 166,929,668.54
  5. Step 5: Solve for x
    x = 166,929,668.54/14,380.28
  6. Step 6: Final answer
    x = 11,608.24

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1.5x scale

Why These Related Problems?

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