Home / 13,829.50-20,711.31-7,968.34

Finding the Fourth Proportional to 13,829.50, 20,711.31 and 7,968.34

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Solution

The fourth proportional to 13,829.50, 20,711.31 and 7,968.34 is: 11,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.50 : 20,711.31 = 7,968.34 : x
  2. Step 2: Convert to fraction form
    13,829.50/20,711.31 = 7,968.34/x
  3. Step 3: Cross multiply
    13,829.50x = 20,711.31 × 7,968.34
  4. Step 4: Simplify right side
    13,829.50x = 165,034,759.93
  5. Step 5: Solve for x
    x = 165,034,759.93/13,829.50
  6. Step 6: Final answer
    x = 11,933.53

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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.