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Finding the Fourth Proportional to 9,689.72, 13,370.22 and 6,104.12

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Solution

The fourth proportional to 9,689.72, 13,370.22 and 6,104.12 is: 8,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,689.72 : 13,370.22 = 6,104.12 : x
  2. Step 2: Convert to fraction form
    9,689.72/13,370.22 = 6,104.12/x
  3. Step 3: Cross multiply
    9,689.72x = 13,370.22 × 6,104.12
  4. Step 4: Simplify right side
    9,689.72x = 81,613,427.31
  5. Step 5: Solve for x
    x = 81,613,427.31/9,689.72
  6. Step 6: Final answer
    x = 8,422.68

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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.