Home / 13,984.30-20,976.28-5,662.06

Finding the Fourth Proportional to 13,984.30, 20,976.28 and 5,662.06

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Solution

The fourth proportional to 13,984.30, 20,976.28 and 5,662.06 is: 8,493.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.30 : 20,976.28 = 5,662.06 : x
  2. Step 2: Convert to fraction form
    13,984.30/20,976.28 = 5,662.06/x
  3. Step 3: Cross multiply
    13,984.30x = 20,976.28 × 5,662.06
  4. Step 4: Simplify right side
    13,984.30x = 118,768,955.94
  5. Step 5: Solve for x
    x = 118,768,955.94/13,984.30
  6. Step 6: Final answer
    x = 8,493.02

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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.