Home / 13,540.44-18,684.02-7,571.88

Finding the Fourth Proportional to 13,540.44, 18,684.02 and 7,571.88

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Solution

The fourth proportional to 13,540.44, 18,684.02 and 7,571.88 is: 10,448.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.44 : 18,684.02 = 7,571.88 : x
  2. Step 2: Convert to fraction form
    13,540.44/18,684.02 = 7,571.88/x
  3. Step 3: Cross multiply
    13,540.44x = 18,684.02 × 7,571.88
  4. Step 4: Simplify right side
    13,540.44x = 141,473,157.36
  5. Step 5: Solve for x
    x = 141,473,157.36/13,540.44
  6. Step 6: Final answer
    x = 10,448.19

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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.