Home / 18,087.55-27,137.48-11,416.29

Finding the Fourth Proportional to 18,087.55, 27,137.48 and 11,416.29

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Solution

The fourth proportional to 18,087.55, 27,137.48 and 11,416.29 is: 17,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.55 : 27,137.48 = 11,416.29 : x
  2. Step 2: Convert to fraction form
    18,087.55/27,137.48 = 11,416.29/x
  3. Step 3: Cross multiply
    18,087.55x = 27,137.48 × 11,416.29
  4. Step 4: Simplify right side
    18,087.55x = 309,809,399.57
  5. Step 5: Solve for x
    x = 309,809,399.57/18,087.55
  6. Step 6: Final answer
    x = 17,128.32

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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.