Home / 11,405.88-17,118.54-4,485.24

Finding the Fourth Proportional to 11,405.88, 17,118.54 and 4,485.24

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Solution

The fourth proportional to 11,405.88, 17,118.54 and 4,485.24 is: 6,731.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.88 : 17,118.54 = 4,485.24 : x
  2. Step 2: Convert to fraction form
    11,405.88/17,118.54 = 4,485.24/x
  3. Step 3: Cross multiply
    11,405.88x = 17,118.54 × 4,485.24
  4. Step 4: Simplify right side
    11,405.88x = 76,780,760.35
  5. Step 5: Solve for x
    x = 76,780,760.35/11,405.88
  6. Step 6: Final answer
    x = 6,731.68

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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.