Home / 18,944.25-28,422.45-9,084.21

Finding the Fourth Proportional to 18,944.25, 28,422.45 and 9,084.21

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Solution

The fourth proportional to 18,944.25, 28,422.45 and 9,084.21 is: 13,629.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.25 : 28,422.45 = 9,084.21 : x
  2. Step 2: Convert to fraction form
    18,944.25/28,422.45 = 9,084.21/x
  3. Step 3: Cross multiply
    18,944.25x = 28,422.45 × 9,084.21
  4. Step 4: Simplify right side
    18,944.25x = 258,195,504.51
  5. Step 5: Solve for x
    x = 258,195,504.51/18,944.25
  6. Step 6: Final answer
    x = 13,629.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.