Home / 10,721.63-16,083.56-2,930.45

Finding the Fourth Proportional to 10,721.63, 16,083.56 and 2,930.45

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Solution

The fourth proportional to 10,721.63, 16,083.56 and 2,930.45 is: 4,395.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.63 : 16,083.56 = 2,930.45 : x
  2. Step 2: Convert to fraction form
    10,721.63/16,083.56 = 2,930.45/x
  3. Step 3: Cross multiply
    10,721.63x = 16,083.56 × 2,930.45
  4. Step 4: Simplify right side
    10,721.63x = 47,131,973.33
  5. Step 5: Solve for x
    x = 47,131,973.33/10,721.63
  6. Step 6: Final answer
    x = 4,395.97

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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.