Home / 8,665.50-12,999.84-2,743.89

Finding the Fourth Proportional to 8,665.50, 12,999.84 and 2,743.89

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Solution

The fourth proportional to 8,665.50, 12,999.84 and 2,743.89 is: 4,116.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.50 : 12,999.84 = 2,743.89 : x
  2. Step 2: Convert to fraction form
    8,665.50/12,999.84 = 2,743.89/x
  3. Step 3: Cross multiply
    8,665.50x = 12,999.84 × 2,743.89
  4. Step 4: Simplify right side
    8,665.50x = 35,670,130.98
  5. Step 5: Solve for x
    x = 35,670,130.98/8,665.50
  6. Step 6: Final answer
    x = 4,116.34

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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.