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Finding the Fourth Proportional to 12,243.48, 16,899.83 and 7,207.31

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Solution

The fourth proportional to 12,243.48, 16,899.83 and 7,207.31 is: 9,948.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243.48 : 16,899.83 = 7,207.31 : x
  2. Step 2: Convert to fraction form
    12,243.48/16,899.83 = 7,207.31/x
  3. Step 3: Cross multiply
    12,243.48x = 16,899.83 × 7,207.31
  4. Step 4: Simplify right side
    12,243.48x = 121,802,313.76
  5. Step 5: Solve for x
    x = 121,802,313.76/12,243.48
  6. Step 6: Final answer
    x = 9,948.34

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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.