Home / 11,866.05-17,804.61-5,291.55

Finding the Fourth Proportional to 11,866.05, 17,804.61 and 5,291.55

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Solution

The fourth proportional to 11,866.05, 17,804.61 and 5,291.55 is: 7,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.05 : 17,804.61 = 5,291.55 : x
  2. Step 2: Convert to fraction form
    11,866.05/17,804.61 = 5,291.55/x
  3. Step 3: Cross multiply
    11,866.05x = 17,804.61 × 5,291.55
  4. Step 4: Simplify right side
    11,866.05x = 94,213,984.05
  5. Step 5: Solve for x
    x = 94,213,984.05/11,866.05
  6. Step 6: Final answer
    x = 7,939.79

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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.