Home / 8,623.30-12,936.98-2,779.96

Finding the Fourth Proportional to 8,623.30, 12,936.98 and 2,779.96

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Solution

The fourth proportional to 8,623.30, 12,936.98 and 2,779.96 is: 4,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.30 : 12,936.98 = 2,779.96 : x
  2. Step 2: Convert to fraction form
    8,623.30/12,936.98 = 2,779.96/x
  3. Step 3: Cross multiply
    8,623.30x = 12,936.98 × 2,779.96
  4. Step 4: Simplify right side
    8,623.30x = 35,964,286.92
  5. Step 5: Solve for x
    x = 35,964,286.92/8,623.30
  6. Step 6: Final answer
    x = 4,170.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.