Home / 11,005.20-16,509.84-3,610.08

Finding the Fourth Proportional to 11,005.20, 16,509.84 and 3,610.08

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Solution

The fourth proportional to 11,005.20, 16,509.84 and 3,610.08 is: 5,415.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.20 : 16,509.84 = 3,610.08 : x
  2. Step 2: Convert to fraction form
    11,005.20/16,509.84 = 3,610.08/x
  3. Step 3: Cross multiply
    11,005.20x = 16,509.84 × 3,610.08
  4. Step 4: Simplify right side
    11,005.20x = 59,601,843.19
  5. Step 5: Solve for x
    x = 59,601,843.19/11,005.20
  6. Step 6: Final answer
    x = 5,415.79

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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.