Home / 8,687.89-13,021.36-4,001.49

Finding the Fourth Proportional to 8,687.89, 13,021.36 and 4,001.49

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Solution

The fourth proportional to 8,687.89, 13,021.36 and 4,001.49 is: 5,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.89 : 13,021.36 = 4,001.49 : x
  2. Step 2: Convert to fraction form
    8,687.89/13,021.36 = 4,001.49/x
  3. Step 3: Cross multiply
    8,687.89x = 13,021.36 × 4,001.49
  4. Step 4: Simplify right side
    8,687.89x = 52,104,841.83
  5. Step 5: Solve for x
    x = 52,104,841.83/8,687.89
  6. Step 6: Final answer
    x = 5,997.41

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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.