Home / 18,405.77-27,605.91-6,716.25

Finding the Fourth Proportional to 18,405.77, 27,605.91 and 6,716.25

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Solution

The fourth proportional to 18,405.77, 27,605.91 and 6,716.25 is: 10,073.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.77 : 27,605.91 = 6,716.25 : x
  2. Step 2: Convert to fraction form
    18,405.77/27,605.91 = 6,716.25/x
  3. Step 3: Cross multiply
    18,405.77x = 27,605.91 × 6,716.25
  4. Step 4: Simplify right side
    18,405.77x = 185,408,218.22
  5. Step 5: Solve for x
    x = 185,408,218.22/18,405.77
  6. Step 6: Final answer
    x = 10,073.38

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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.