Home / 13,194.28-18,208.13-7,144.58

Finding the Fourth Proportional to 13,194.28, 18,208.13 and 7,144.58

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Solution

The fourth proportional to 13,194.28, 18,208.13 and 7,144.58 is: 9,859.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.28 : 18,208.13 = 7,144.58 : x
  2. Step 2: Convert to fraction form
    13,194.28/18,208.13 = 7,144.58/x
  3. Step 3: Cross multiply
    13,194.28x = 18,208.13 × 7,144.58
  4. Step 4: Simplify right side
    13,194.28x = 130,089,525.56
  5. Step 5: Solve for x
    x = 130,089,525.56/13,194.28
  6. Step 6: Final answer
    x = 9,859.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.