Home / 11,749.80-17,627.10-3,959.40

Finding the Fourth Proportional to 11,749.80, 17,627.10 and 3,959.40

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Solution

The fourth proportional to 11,749.80, 17,627.10 and 3,959.40 is: 5,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.80 : 17,627.10 = 3,959.40 : x
  2. Step 2: Convert to fraction form
    11,749.80/17,627.10 = 3,959.40/x
  3. Step 3: Cross multiply
    11,749.80x = 17,627.10 × 3,959.40
  4. Step 4: Simplify right side
    11,749.80x = 69,792,739.74
  5. Step 5: Solve for x
    x = 69,792,739.74/11,749.80
  6. Step 6: Final answer
    x = 5,939.91

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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.