Home / 19,851.80-27,394.56-11,898.44

Finding the Fourth Proportional to 19,851.80, 27,394.56 and 11,898.44

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Solution

The fourth proportional to 19,851.80, 27,394.56 and 11,898.44 is: 16,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.80 : 27,394.56 = 11,898.44 : x
  2. Step 2: Convert to fraction form
    19,851.80/27,394.56 = 11,898.44/x
  3. Step 3: Cross multiply
    19,851.80x = 27,394.56 × 11,898.44
  4. Step 4: Simplify right side
    19,851.80x = 325,952,528.49
  5. Step 5: Solve for x
    x = 325,952,528.49/19,851.80
  6. Step 6: Final answer
    x = 16,419.29

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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.