Home / 11,990.36-17,985.47-4,093.77

Finding the Fourth Proportional to 11,990.36, 17,985.47 and 4,093.77

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Solution

The fourth proportional to 11,990.36, 17,985.47 and 4,093.77 is: 6,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.36 : 17,985.47 = 4,093.77 : x
  2. Step 2: Convert to fraction form
    11,990.36/17,985.47 = 4,093.77/x
  3. Step 3: Cross multiply
    11,990.36x = 17,985.47 × 4,093.77
  4. Step 4: Simplify right side
    11,990.36x = 73,628,357.05
  5. Step 5: Solve for x
    x = 73,628,357.05/11,990.36
  6. Step 6: Final answer
    x = 6,140.63

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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.