Home / 13,670.03-20,504.43-3,809.09

Finding the Fourth Proportional to 13,670.03, 20,504.43 and 3,809.09

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Solution

The fourth proportional to 13,670.03, 20,504.43 and 3,809.09 is: 5,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.03 : 20,504.43 = 3,809.09 : x
  2. Step 2: Convert to fraction form
    13,670.03/20,504.43 = 3,809.09/x
  3. Step 3: Cross multiply
    13,670.03x = 20,504.43 × 3,809.09
  4. Step 4: Simplify right side
    13,670.03x = 78,103,219.27
  5. Step 5: Solve for x
    x = 78,103,219.27/13,670.03
  6. Step 6: Final answer
    x = 5,713.46

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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.