Home / 18,231.96-25,145.58-13,756.44

Finding the Fourth Proportional to 18,231.96, 25,145.58 and 13,756.44

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Solution

The fourth proportional to 18,231.96, 25,145.58 and 13,756.44 is: 18,972.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.96 : 25,145.58 = 13,756.44 : x
  2. Step 2: Convert to fraction form
    18,231.96/25,145.58 = 13,756.44/x
  3. Step 3: Cross multiply
    18,231.96x = 25,145.58 × 13,756.44
  4. Step 4: Simplify right side
    18,231.96x = 345,913,662.54
  5. Step 5: Solve for x
    x = 345,913,662.54/18,231.96
  6. Step 6: Final answer
    x = 18,972.93

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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.