Home / 13,328.72-20,005.26-6,759.44

Finding the Fourth Proportional to 13,328.72, 20,005.26 and 6,759.44

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Solution

The fourth proportional to 13,328.72, 20,005.26 and 6,759.44 is: 10,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.72 : 20,005.26 = 6,759.44 : x
  2. Step 2: Convert to fraction form
    13,328.72/20,005.26 = 6,759.44/x
  3. Step 3: Cross multiply
    13,328.72x = 20,005.26 × 6,759.44
  4. Step 4: Simplify right side
    13,328.72x = 135,224,354.65
  5. Step 5: Solve for x
    x = 135,224,354.65/13,328.72
  6. Step 6: Final answer
    x = 10,145.34

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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.