Home / 18,556.29-27,880.07-11,895.66

Finding the Fourth Proportional to 18,556.29, 27,880.07 and 11,895.66

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Solution

The fourth proportional to 18,556.29, 27,880.07 and 11,895.66 is: 17,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.29 : 27,880.07 = 11,895.66 : x
  2. Step 2: Convert to fraction form
    18,556.29/27,880.07 = 11,895.66/x
  3. Step 3: Cross multiply
    18,556.29x = 27,880.07 × 11,895.66
  4. Step 4: Simplify right side
    18,556.29x = 331,651,774.02
  5. Step 5: Solve for x
    x = 331,651,774.02/18,556.29
  6. Step 6: Final answer
    x = 17,872.74

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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.