Home / 13,519.93-18,558.21-11,994.50

Finding the Fourth Proportional to 13,519.93, 18,558.21 and 11,994.50

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Solution

The fourth proportional to 13,519.93, 18,558.21 and 11,994.50 is: 16,464.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.93 : 18,558.21 = 11,994.50 : x
  2. Step 2: Convert to fraction form
    13,519.93/18,558.21 = 11,994.50/x
  3. Step 3: Cross multiply
    13,519.93x = 18,558.21 × 11,994.50
  4. Step 4: Simplify right side
    13,519.93x = 222,596,449.85
  5. Step 5: Solve for x
    x = 222,596,449.85/13,519.93
  6. Step 6: Final answer
    x = 16,464.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.