Home / 14,386.09-21,579.19-3,997.84

Finding the Fourth Proportional to 14,386.09, 21,579.19 and 3,997.84

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Solution

The fourth proportional to 14,386.09, 21,579.19 and 3,997.84 is: 5,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.09 : 21,579.19 = 3,997.84 : x
  2. Step 2: Convert to fraction form
    14,386.09/21,579.19 = 3,997.84/x
  3. Step 3: Cross multiply
    14,386.09x = 21,579.19 × 3,997.84
  4. Step 4: Simplify right side
    14,386.09x = 86,270,148.95
  5. Step 5: Solve for x
    x = 86,270,148.95/14,386.09
  6. Step 6: Final answer
    x = 5,996.78

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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.