Home / 11,983.81-17,975.75-3,663.79

Finding the Fourth Proportional to 11,983.81, 17,975.75 and 3,663.79

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Solution

The fourth proportional to 11,983.81, 17,975.75 and 3,663.79 is: 5,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.81 : 17,975.75 = 3,663.79 : x
  2. Step 2: Convert to fraction form
    11,983.81/17,975.75 = 3,663.79/x
  3. Step 3: Cross multiply
    11,983.81x = 17,975.75 × 3,663.79
  4. Step 4: Simplify right side
    11,983.81x = 65,859,373.09
  5. Step 5: Solve for x
    x = 65,859,373.09/11,983.81
  6. Step 6: Final answer
    x = 5,495.70

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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.