Home / 18,266.25-27,399.83-5,119.65

Finding the Fourth Proportional to 18,266.25, 27,399.83 and 5,119.65

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Solution

The fourth proportional to 18,266.25, 27,399.83 and 5,119.65 is: 7,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.25 : 27,399.83 = 5,119.65 : x
  2. Step 2: Convert to fraction form
    18,266.25/27,399.83 = 5,119.65/x
  3. Step 3: Cross multiply
    18,266.25x = 27,399.83 × 5,119.65
  4. Step 4: Simplify right side
    18,266.25x = 140,277,402.66
  5. Step 5: Solve for x
    x = 140,277,402.66/18,266.25
  6. Step 6: Final answer
    x = 7,679.60

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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.