Home / 10,939.34-16,409.73-3,148.22

Finding the Fourth Proportional to 10,939.34, 16,409.73 and 3,148.22

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Solution

The fourth proportional to 10,939.34, 16,409.73 and 3,148.22 is: 4,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.34 : 16,409.73 = 3,148.22 : x
  2. Step 2: Convert to fraction form
    10,939.34/16,409.73 = 3,148.22/x
  3. Step 3: Cross multiply
    10,939.34x = 16,409.73 × 3,148.22
  4. Step 4: Simplify right side
    10,939.34x = 51,661,440.18
  5. Step 5: Solve for x
    x = 51,661,440.18/10,939.34
  6. Step 6: Final answer
    x = 4,722.54

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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.