Home / 10,939.89-16,409.64-3,544.36

Finding the Fourth Proportional to 10,939.89, 16,409.64 and 3,544.36

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Solution

The fourth proportional to 10,939.89, 16,409.64 and 3,544.36 is: 5,316.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.89 : 16,409.64 = 3,544.36 : x
  2. Step 2: Convert to fraction form
    10,939.89/16,409.64 = 3,544.36/x
  3. Step 3: Cross multiply
    10,939.89x = 16,409.64 × 3,544.36
  4. Step 4: Simplify right side
    10,939.89x = 58,161,623.96
  5. Step 5: Solve for x
    x = 58,161,623.96/10,939.89
  6. Step 6: Final answer
    x = 5,316.47

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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.