Home / 11,721.63-17,589.30-4,331.25

Finding the Fourth Proportional to 11,721.63, 17,589.30 and 4,331.25

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Solution

The fourth proportional to 11,721.63, 17,589.30 and 4,331.25 is: 6,499.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.63 : 17,589.30 = 4,331.25 : x
  2. Step 2: Convert to fraction form
    11,721.63/17,589.30 = 4,331.25/x
  3. Step 3: Cross multiply
    11,721.63x = 17,589.30 × 4,331.25
  4. Step 4: Simplify right side
    11,721.63x = 76,183,655.63
  5. Step 5: Solve for x
    x = 76,183,655.63/11,721.63
  6. Step 6: Final answer
    x = 6,499.41

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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.