Home / 13,670.49-20,505.05-5,352.03

Finding the Fourth Proportional to 13,670.49, 20,505.05 and 5,352.03

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Solution

The fourth proportional to 13,670.49, 20,505.05 and 5,352.03 is: 8,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.49 : 20,505.05 = 5,352.03 : x
  2. Step 2: Convert to fraction form
    13,670.49/20,505.05 = 5,352.03/x
  3. Step 3: Cross multiply
    13,670.49x = 20,505.05 × 5,352.03
  4. Step 4: Simplify right side
    13,670.49x = 109,743,642.75
  5. Step 5: Solve for x
    x = 109,743,642.75/13,670.49
  6. Step 6: Final answer
    x = 8,027.78

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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.