Home / 11,983.63-17,975.56-3,218.54

Finding the Fourth Proportional to 11,983.63, 17,975.56 and 3,218.54

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Solution

The fourth proportional to 11,983.63, 17,975.56 and 3,218.54 is: 4,827.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.63 : 17,975.56 = 3,218.54 : x
  2. Step 2: Convert to fraction form
    11,983.63/17,975.56 = 3,218.54/x
  3. Step 3: Cross multiply
    11,983.63x = 17,975.56 × 3,218.54
  4. Step 4: Simplify right side
    11,983.63x = 57,855,042.79
  5. Step 5: Solve for x
    x = 57,855,042.79/11,983.63
  6. Step 6: Final answer
    x = 4,827.84

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1.5x scale

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.