Home / 11,988.51-17,982.73-3,223.43

Finding the Fourth Proportional to 11,988.51, 17,982.73 and 3,223.43

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Solution

The fourth proportional to 11,988.51, 17,982.73 and 3,223.43 is: 4,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.51 : 17,982.73 = 3,223.43 : x
  2. Step 2: Convert to fraction form
    11,988.51/17,982.73 = 3,223.43/x
  3. Step 3: Cross multiply
    11,988.51x = 17,982.73 × 3,223.43
  4. Step 4: Simplify right side
    11,988.51x = 57,966,034.78
  5. Step 5: Solve for x
    x = 57,966,034.78/11,988.51
  6. Step 6: Final answer
    x = 4,835.13

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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.