Home / 11,873.56-17,821.90-5,721.88

Finding the Fourth Proportional to 11,873.56, 17,821.90 and 5,721.88

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Solution

The fourth proportional to 11,873.56, 17,821.90 and 5,721.88 is: 8,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.56 : 17,821.90 = 5,721.88 : x
  2. Step 2: Convert to fraction form
    11,873.56/17,821.90 = 5,721.88/x
  3. Step 3: Cross multiply
    11,873.56x = 17,821.90 × 5,721.88
  4. Step 4: Simplify right side
    11,873.56x = 101,974,773.17
  5. Step 5: Solve for x
    x = 101,974,773.17/11,873.56
  6. Step 6: Final answer
    x = 8,588.39

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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.