Home / 19,866.22-27,418.01-12,813.14

Finding the Fourth Proportional to 19,866.22, 27,418.01 and 12,813.14

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Solution

The fourth proportional to 19,866.22, 27,418.01 and 12,813.14 is: 17,683.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.22 : 27,418.01 = 12,813.14 : x
  2. Step 2: Convert to fraction form
    19,866.22/27,418.01 = 12,813.14/x
  3. Step 3: Cross multiply
    19,866.22x = 27,418.01 × 12,813.14
  4. Step 4: Simplify right side
    19,866.22x = 351,310,805.13
  5. Step 5: Solve for x
    x = 351,310,805.13/19,866.22
  6. Step 6: Final answer
    x = 17,683.83

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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.