Home / 13,478.36-20,224.56-10,190.48

Finding the Fourth Proportional to 13,478.36, 20,224.56 and 10,190.48

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Solution

The fourth proportional to 13,478.36, 20,224.56 and 10,190.48 is: 15,291.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.36 : 20,224.56 = 10,190.48 : x
  2. Step 2: Convert to fraction form
    13,478.36/20,224.56 = 10,190.48/x
  3. Step 3: Cross multiply
    13,478.36x = 20,224.56 × 10,190.48
  4. Step 4: Simplify right side
    13,478.36x = 206,097,974.19
  5. Step 5: Solve for x
    x = 206,097,974.19/13,478.36
  6. Step 6: Final answer
    x = 15,291.03

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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.