Home / 12,739.26-19,119.42-6,503.88

Finding the Fourth Proportional to 12,739.26, 19,119.42 and 6,503.88

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Solution

The fourth proportional to 12,739.26, 19,119.42 and 6,503.88 is: 9,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.26 : 19,119.42 = 6,503.88 : x
  2. Step 2: Convert to fraction form
    12,739.26/19,119.42 = 6,503.88/x
  3. Step 3: Cross multiply
    12,739.26x = 19,119.42 × 6,503.88
  4. Step 4: Simplify right side
    12,739.26x = 124,350,413.35
  5. Step 5: Solve for x
    x = 124,350,413.35/12,739.26
  6. Step 6: Final answer
    x = 9,761.20

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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.