Home / 8,665.07-12,999.21-2,743.45

Finding the Fourth Proportional to 8,665.07, 12,999.21 and 2,743.45

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Solution

The fourth proportional to 8,665.07, 12,999.21 and 2,743.45 is: 4,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.07 : 12,999.21 = 2,743.45 : x
  2. Step 2: Convert to fraction form
    8,665.07/12,999.21 = 2,743.45/x
  3. Step 3: Cross multiply
    8,665.07x = 12,999.21 × 2,743.45
  4. Step 4: Simplify right side
    8,665.07x = 35,662,617.68
  5. Step 5: Solve for x
    x = 35,662,617.68/8,665.07
  6. Step 6: Final answer
    x = 4,115.68

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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.