Home / 12,406.69-18,611.21-4,086.73

Finding the Fourth Proportional to 12,406.69, 18,611.21 and 4,086.73

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Solution

The fourth proportional to 12,406.69, 18,611.21 and 4,086.73 is: 6,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.69 : 18,611.21 = 4,086.73 : x
  2. Step 2: Convert to fraction form
    12,406.69/18,611.21 = 4,086.73/x
  3. Step 3: Cross multiply
    12,406.69x = 18,611.21 × 4,086.73
  4. Step 4: Simplify right side
    12,406.69x = 76,058,990.24
  5. Step 5: Solve for x
    x = 76,058,990.24/12,406.69
  6. Step 6: Final answer
    x = 6,130.48

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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.