Home / 18,181.86-27,280.68-9,867.75

Finding the Fourth Proportional to 18,181.86, 27,280.68 and 9,867.75

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Solution

The fourth proportional to 18,181.86, 27,280.68 and 9,867.75 is: 14,805.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.86 : 27,280.68 = 9,867.75 : x
  2. Step 2: Convert to fraction form
    18,181.86/27,280.68 = 9,867.75/x
  3. Step 3: Cross multiply
    18,181.86x = 27,280.68 × 9,867.75
  4. Step 4: Simplify right side
    18,181.86x = 269,198,930.07
  5. Step 5: Solve for x
    x = 269,198,930.07/18,181.86
  6. Step 6: Final answer
    x = 14,805.91

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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.