Home / 13,835.90-20,757.36-3,975.86

Finding the Fourth Proportional to 13,835.90, 20,757.36 and 3,975.86

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Solution

The fourth proportional to 13,835.90, 20,757.36 and 3,975.86 is: 5,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.90 : 20,757.36 = 3,975.86 : x
  2. Step 2: Convert to fraction form
    13,835.90/20,757.36 = 3,975.86/x
  3. Step 3: Cross multiply
    13,835.90x = 20,757.36 × 3,975.86
  4. Step 4: Simplify right side
    13,835.90x = 82,528,357.33
  5. Step 5: Solve for x
    x = 82,528,357.33/13,835.90
  6. Step 6: Final answer
    x = 5,964.80

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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.