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Finding the Fourth Proportional to 12,399.26, 17,111.10 and 6,810.26

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Solution

The fourth proportional to 12,399.26, 17,111.10 and 6,810.26 is: 9,398.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.26 : 17,111.10 = 6,810.26 : x
  2. Step 2: Convert to fraction form
    12,399.26/17,111.10 = 6,810.26/x
  3. Step 3: Cross multiply
    12,399.26x = 17,111.10 × 6,810.26
  4. Step 4: Simplify right side
    12,399.26x = 116,531,039.89
  5. Step 5: Solve for x
    x = 116,531,039.89/12,399.26
  6. Step 6: Final answer
    x = 9,398.23

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