Home / 19,687.19-27,171.44-11,734.03

Finding the Fourth Proportional to 19,687.19, 27,171.44 and 11,734.03

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Solution

The fourth proportional to 19,687.19, 27,171.44 and 11,734.03 is: 16,194.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.19 : 27,171.44 = 11,734.03 : x
  2. Step 2: Convert to fraction form
    19,687.19/27,171.44 = 11,734.03/x
  3. Step 3: Cross multiply
    19,687.19x = 27,171.44 × 11,734.03
  4. Step 4: Simplify right side
    19,687.19x = 318,830,492.10
  5. Step 5: Solve for x
    x = 318,830,492.10/19,687.19
  6. Step 6: Final answer
    x = 16,194.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.