Home / 18,667.89-27,991.46-6,181.11

Finding the Fourth Proportional to 18,667.89, 27,991.46 and 6,181.11

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Solution

The fourth proportional to 18,667.89, 27,991.46 and 6,181.11 is: 9,268.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.89 : 27,991.46 = 6,181.11 : x
  2. Step 2: Convert to fraction form
    18,667.89/27,991.46 = 6,181.11/x
  3. Step 3: Cross multiply
    18,667.89x = 27,991.46 × 6,181.11
  4. Step 4: Simplify right side
    18,667.89x = 173,018,203.53
  5. Step 5: Solve for x
    x = 173,018,203.53/18,667.89
  6. Step 6: Final answer
    x = 9,268.22

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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.