Home / 12,403.91-18,608.42-4,084.43

Finding the Fourth Proportional to 12,403.91, 18,608.42 and 4,084.43

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Solution

The fourth proportional to 12,403.91, 18,608.42 and 4,084.43 is: 6,127.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.91 : 18,608.42 = 4,084.43 : x
  2. Step 2: Convert to fraction form
    12,403.91/18,608.42 = 4,084.43/x
  3. Step 3: Cross multiply
    12,403.91x = 18,608.42 × 4,084.43
  4. Step 4: Simplify right side
    12,403.91x = 76,004,675.44
  5. Step 5: Solve for x
    x = 76,004,675.44/12,403.91
  6. Step 6: Final answer
    x = 6,127.48

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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.