Home / 18,993.08-28,489.26-11,150.12

Finding the Fourth Proportional to 18,993.08, 28,489.26 and 11,150.12

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Solution

The fourth proportional to 18,993.08, 28,489.26 and 11,150.12 is: 16,724.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.08 : 28,489.26 = 11,150.12 : x
  2. Step 2: Convert to fraction form
    18,993.08/28,489.26 = 11,150.12/x
  3. Step 3: Cross multiply
    18,993.08x = 28,489.26 × 11,150.12
  4. Step 4: Simplify right side
    18,993.08x = 317,658,667.71
  5. Step 5: Solve for x
    x = 317,658,667.71/18,993.08
  6. Step 6: Final answer
    x = 16,724.97

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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.