Home / 11,939.23-17,911.56-3,619.48

Finding the Fourth Proportional to 11,939.23, 17,911.56 and 3,619.48

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Solution

The fourth proportional to 11,939.23, 17,911.56 and 3,619.48 is: 5,430.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.23 : 17,911.56 = 3,619.48 : x
  2. Step 2: Convert to fraction form
    11,939.23/17,911.56 = 3,619.48/x
  3. Step 3: Cross multiply
    11,939.23x = 17,911.56 × 3,619.48
  4. Step 4: Simplify right side
    11,939.23x = 64,830,533.19
  5. Step 5: Solve for x
    x = 64,830,533.19/11,939.23
  6. Step 6: Final answer
    x = 5,430.04

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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.