Home / 13,982.04-20,968.48-4,619.88

Finding the Fourth Proportional to 13,982.04, 20,968.48 and 4,619.88

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Solution

The fourth proportional to 13,982.04, 20,968.48 and 4,619.88 is: 6,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.04 : 20,968.48 = 4,619.88 : x
  2. Step 2: Convert to fraction form
    13,982.04/20,968.48 = 4,619.88/x
  3. Step 3: Cross multiply
    13,982.04x = 20,968.48 × 4,619.88
  4. Step 4: Simplify right side
    13,982.04x = 96,871,861.38
  5. Step 5: Solve for x
    x = 96,871,861.38/13,982.04
  6. Step 6: Final answer
    x = 6,928.31

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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.