Home / 18,209.72-27,325.19-7,679.09

Finding the Fourth Proportional to 18,209.72, 27,325.19 and 7,679.09

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Solution

The fourth proportional to 18,209.72, 27,325.19 and 7,679.09 is: 11,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.72 : 27,325.19 = 7,679.09 : x
  2. Step 2: Convert to fraction form
    18,209.72/27,325.19 = 7,679.09/x
  3. Step 3: Cross multiply
    18,209.72x = 27,325.19 × 7,679.09
  4. Step 4: Simplify right side
    18,209.72x = 209,832,418.26
  5. Step 5: Solve for x
    x = 209,832,418.26/18,209.72
  6. Step 6: Final answer
    x = 11,523.10

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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.