Home / 16,787.40-23,167.20-9,234.30

Finding the Fourth Proportional to 16,787.40, 23,167.20 and 9,234.30

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Solution

The fourth proportional to 16,787.40, 23,167.20 and 9,234.30 is: 12,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787.40 : 23,167.20 = 9,234.30 : x
  2. Step 2: Convert to fraction form
    16,787.40/23,167.20 = 9,234.30/x
  3. Step 3: Cross multiply
    16,787.40x = 23,167.20 × 9,234.30
  4. Step 4: Simplify right side
    16,787.40x = 213,932,874.96
  5. Step 5: Solve for x
    x = 213,932,874.96/16,787.40
  6. Step 6: Final answer
    x = 12,743.66

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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.