Home / 18,375.44-25,365.69-13,900.59

Finding the Fourth Proportional to 18,375.44, 25,365.69 and 13,900.59

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Solution

The fourth proportional to 18,375.44, 25,365.69 and 13,900.59 is: 19,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.44 : 25,365.69 = 13,900.59 : x
  2. Step 2: Convert to fraction form
    18,375.44/25,365.69 = 13,900.59/x
  3. Step 3: Cross multiply
    18,375.44x = 25,365.69 × 13,900.59
  4. Step 4: Simplify right side
    18,375.44x = 352,598,056.76
  5. Step 5: Solve for x
    x = 352,598,056.76/18,375.44
  6. Step 6: Final answer
    x = 19,188.56

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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.