Home / 11,405.68-17,109-3,614.32

Finding the Fourth Proportional to 11,405.68, 17,109 and 3,614.32

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Solution

The fourth proportional to 11,405.68, 17,109 and 3,614.32 is: 5,421.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.68 : 17,109 = 3,614.32 : x
  2. Step 2: Convert to fraction form
    11,405.68/17,109 = 3,614.32/x
  3. Step 3: Cross multiply
    11,405.68x = 17,109 × 3,614.32
  4. Step 4: Simplify right side
    11,405.68x = 61,837,400.88
  5. Step 5: Solve for x
    x = 61,837,400.88/11,405.68
  6. Step 6: Final answer
    x = 5,421.63

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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.