Home / 18,172.72-27,267.68-7,645.06

Finding the Fourth Proportional to 18,172.72, 27,267.68 and 7,645.06

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Solution

The fourth proportional to 18,172.72, 27,267.68 and 7,645.06 is: 11,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.72 : 27,267.68 = 7,645.06 : x
  2. Step 2: Convert to fraction form
    18,172.72/27,267.68 = 7,645.06/x
  3. Step 3: Cross multiply
    18,172.72x = 27,267.68 × 7,645.06
  4. Step 4: Simplify right side
    18,172.72x = 208,463,049.66
  5. Step 5: Solve for x
    x = 208,463,049.66/18,172.72
  6. Step 6: Final answer
    x = 11,471.21

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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.