Home / 7,999.09-11,982.56-3,984.37

Finding the Fourth Proportional to 7,999.09, 11,982.56 and 3,984.37

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Solution

The fourth proportional to 7,999.09, 11,982.56 and 3,984.37 is: 5,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.09 : 11,982.56 = 3,984.37 : x
  2. Step 2: Convert to fraction form
    7,999.09/11,982.56 = 3,984.37/x
  3. Step 3: Cross multiply
    7,999.09x = 11,982.56 × 3,984.37
  4. Step 4: Simplify right side
    7,999.09x = 47,742,952.59
  5. Step 5: Solve for x
    x = 47,742,952.59/7,999.09
  6. Step 6: Final answer
    x = 5,968.55

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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.