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Finding the Fourth Proportional to 7,999.97, 12,001.16 and 2,804.63

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Solution

The fourth proportional to 7,999.97, 12,001.16 and 2,804.63 is: 4,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.97 : 12,001.16 = 2,804.63 : x
  2. Step 2: Convert to fraction form
    7,999.97/12,001.16 = 2,804.63/x
  3. Step 3: Cross multiply
    7,999.97x = 12,001.16 × 2,804.63
  4. Step 4: Simplify right side
    7,999.97x = 33,658,760.38
  5. Step 5: Solve for x
    x = 33,658,760.38/7,999.97
  6. Step 6: Final answer
    x = 4,207.36

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1.5x scale

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.