Home / 11,405.08-17,112.30-5,163.40

Finding the Fourth Proportional to 11,405.08, 17,112.30 and 5,163.40

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Solution

The fourth proportional to 11,405.08, 17,112.30 and 5,163.40 is: 7,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,405.08 : 17,112.30 = 5,163.40 : x
  2. Step 2: Convert to fraction form
    11,405.08/17,112.30 = 5,163.40/x
  3. Step 3: Cross multiply
    11,405.08x = 17,112.30 × 5,163.40
  4. Step 4: Simplify right side
    11,405.08x = 88,357,649.82
  5. Step 5: Solve for x
    x = 88,357,649.82/11,405.08
  6. Step 6: Final answer
    x = 7,747.22

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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.