Home / 16,764.12-23,142.38-9,689.18

Finding the Fourth Proportional to 16,764.12, 23,142.38 and 9,689.18

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Solution

The fourth proportional to 16,764.12, 23,142.38 and 9,689.18 is: 13,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,764.12 : 23,142.38 = 9,689.18 : x
  2. Step 2: Convert to fraction form
    16,764.12/23,142.38 = 9,689.18/x
  3. Step 3: Cross multiply
    16,764.12x = 23,142.38 × 9,689.18
  4. Step 4: Simplify right side
    16,764.12x = 224,230,521.29
  5. Step 5: Solve for x
    x = 224,230,521.29/16,764.12
  6. Step 6: Final answer
    x = 13,375.62

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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.