Home / 13,491.75-20,236.77-4,131.03

Finding the Fourth Proportional to 13,491.75, 20,236.77 and 4,131.03

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Solution

The fourth proportional to 13,491.75, 20,236.77 and 4,131.03 is: 6,196.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.75 : 20,236.77 = 4,131.03 : x
  2. Step 2: Convert to fraction form
    13,491.75/20,236.77 = 4,131.03/x
  3. Step 3: Cross multiply
    13,491.75x = 20,236.77 × 4,131.03
  4. Step 4: Simplify right side
    13,491.75x = 83,598,703.97
  5. Step 5: Solve for x
    x = 83,598,703.97/13,491.75
  6. Step 6: Final answer
    x = 6,196.28

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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.