Home / 16,787.51-23,166.87-9,234.33

Finding the Fourth Proportional to 16,787.51, 23,166.87 and 9,234.33

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Solution

The fourth proportional to 16,787.51, 23,166.87 and 9,234.33 is: 12,743.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787.51 : 23,166.87 = 9,234.33 : x
  2. Step 2: Convert to fraction form
    16,787.51/23,166.87 = 9,234.33/x
  3. Step 3: Cross multiply
    16,787.51x = 23,166.87 × 9,234.33
  4. Step 4: Simplify right side
    16,787.51x = 213,930,522.65
  5. Step 5: Solve for x
    x = 213,930,522.65/16,787.51
  6. Step 6: Final answer
    x = 12,743.43

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Double scale
Find fourth proportional to 16,788.51, 23,168.25 and 9,235.33
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1.5x scale

Why These Related Problems?

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