Home / 8,102.43-11,185.09-4,744.78

Finding the Fourth Proportional to 8,102.43, 11,185.09 and 4,744.78

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Solution

The fourth proportional to 8,102.43, 11,185.09 and 4,744.78 is: 6,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.43 : 11,185.09 = 4,744.78 : x
  2. Step 2: Convert to fraction form
    8,102.43/11,185.09 = 4,744.78/x
  3. Step 3: Cross multiply
    8,102.43x = 11,185.09 × 4,744.78
  4. Step 4: Simplify right side
    8,102.43x = 53,070,751.51
  5. Step 5: Solve for x
    x = 53,070,751.51/8,102.43
  6. Step 6: Final answer
    x = 6,549.98

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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.