Home / 18,028.77-27,057.11-11,787.09

Finding the Fourth Proportional to 18,028.77, 27,057.11 and 11,787.09

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Solution

The fourth proportional to 18,028.77, 27,057.11 and 11,787.09 is: 17,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.77 : 27,057.11 = 11,787.09 : x
  2. Step 2: Convert to fraction form
    18,028.77/27,057.11 = 11,787.09/x
  3. Step 3: Cross multiply
    18,028.77x = 27,057.11 × 11,787.09
  4. Step 4: Simplify right side
    18,028.77x = 318,924,531.77
  5. Step 5: Solve for x
    x = 318,924,531.77/18,028.77
  6. Step 6: Final answer
    x = 17,689.76

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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.