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Finding the Fourth Proportional to 12,347.72, 17,039.20 and 6,757.64

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Solution

The fourth proportional to 12,347.72, 17,039.20 and 6,757.64 is: 9,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.72 : 17,039.20 = 6,757.64 : x
  2. Step 2: Convert to fraction form
    12,347.72/17,039.20 = 6,757.64/x
  3. Step 3: Cross multiply
    12,347.72x = 17,039.20 × 6,757.64
  4. Step 4: Simplify right side
    12,347.72x = 115,144,779.49
  5. Step 5: Solve for x
    x = 115,144,779.49/12,347.72
  6. Step 6: Final answer
    x = 9,325.19

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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.