Home / 11,208.42-16,815.15-3,418.02

Finding the Fourth Proportional to 11,208.42, 16,815.15 and 3,418.02

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Solution

The fourth proportional to 11,208.42, 16,815.15 and 3,418.02 is: 5,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.42 : 16,815.15 = 3,418.02 : x
  2. Step 2: Convert to fraction form
    11,208.42/16,815.15 = 3,418.02/x
  3. Step 3: Cross multiply
    11,208.42x = 16,815.15 × 3,418.02
  4. Step 4: Simplify right side
    11,208.42x = 57,474,519.00
  5. Step 5: Solve for x
    x = 57,474,519.00/11,208.42
  6. Step 6: Final answer
    x = 5,127.80

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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.