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Finding the Fourth Proportional to 13,755.76, 20,633.37 and 3,367.51

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Solution

The fourth proportional to 13,755.76, 20,633.37 and 3,367.51 is: 5,051.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.76 : 20,633.37 = 3,367.51 : x
  2. Step 2: Convert to fraction form
    13,755.76/20,633.37 = 3,367.51/x
  3. Step 3: Cross multiply
    13,755.76x = 20,633.37 × 3,367.51
  4. Step 4: Simplify right side
    13,755.76x = 69,483,079.81
  5. Step 5: Solve for x
    x = 69,483,079.81/13,755.76
  6. Step 6: Final answer
    x = 5,051.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.