Home / 13,823.14-18,923.31-13,724.32

Finding the Fourth Proportional to 13,823.14, 18,923.31 and 13,724.32

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Solution

The fourth proportional to 13,823.14, 18,923.31 and 13,724.32 is: 18,788.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.14 : 18,923.31 = 13,724.32 : x
  2. Step 2: Convert to fraction form
    13,823.14/18,923.31 = 13,724.32/x
  3. Step 3: Cross multiply
    13,823.14x = 18,923.31 × 13,724.32
  4. Step 4: Simplify right side
    13,823.14x = 259,709,561.90
  5. Step 5: Solve for x
    x = 259,709,561.90/13,823.14
  6. Step 6: Final answer
    x = 18,788.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.