Home / 12,359.26-18,540.33-4,039.90

Finding the Fourth Proportional to 12,359.26, 18,540.33 and 4,039.90

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Solution

The fourth proportional to 12,359.26, 18,540.33 and 4,039.90 is: 6,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.26 : 18,540.33 = 4,039.90 : x
  2. Step 2: Convert to fraction form
    12,359.26/18,540.33 = 4,039.90/x
  3. Step 3: Cross multiply
    12,359.26x = 18,540.33 × 4,039.90
  4. Step 4: Simplify right side
    12,359.26x = 74,901,079.17
  5. Step 5: Solve for x
    x = 74,901,079.17/12,359.26
  6. Step 6: Final answer
    x = 6,060.32

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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.