Home / 13,942.53-20,899.22-6,540.75

Finding the Fourth Proportional to 13,942.53, 20,899.22 and 6,540.75

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Solution

The fourth proportional to 13,942.53, 20,899.22 and 6,540.75 is: 9,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.53 : 20,899.22 = 6,540.75 : x
  2. Step 2: Convert to fraction form
    13,942.53/20,899.22 = 6,540.75/x
  3. Step 3: Cross multiply
    13,942.53x = 20,899.22 × 6,540.75
  4. Step 4: Simplify right side
    13,942.53x = 136,696,540.51
  5. Step 5: Solve for x
    x = 136,696,540.51/13,942.53
  6. Step 6: Final answer
    x = 9,804.29

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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.