Home / 14,187.82-21,282.96-3,657.75

Finding the Fourth Proportional to 14,187.82, 21,282.96 and 3,657.75

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Solution

The fourth proportional to 14,187.82, 21,282.96 and 3,657.75 is: 5,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.82 : 21,282.96 = 3,657.75 : x
  2. Step 2: Convert to fraction form
    14,187.82/21,282.96 = 3,657.75/x
  3. Step 3: Cross multiply
    14,187.82x = 21,282.96 × 3,657.75
  4. Step 4: Simplify right side
    14,187.82x = 77,847,755.25
  5. Step 5: Solve for x
    x = 77,847,755.25/14,187.82
  6. Step 6: Final answer
    x = 5,486.94

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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.