Home / 13,636.44-20,444.79-5,309.43

Finding the Fourth Proportional to 13,636.44, 20,444.79 and 5,309.43

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Solution

The fourth proportional to 13,636.44, 20,444.79 and 5,309.43 is: 7,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.44 : 20,444.79 = 5,309.43 : x
  2. Step 2: Convert to fraction form
    13,636.44/20,444.79 = 5,309.43/x
  3. Step 3: Cross multiply
    13,636.44x = 20,444.79 × 5,309.43
  4. Step 4: Simplify right side
    13,636.44x = 108,550,181.37
  5. Step 5: Solve for x
    x = 108,550,181.37/13,636.44
  6. Step 6: Final answer
    x = 7,960.30

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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.