Home / 13,394.66-20,072.55-7,538.77

Finding the Fourth Proportional to 13,394.66, 20,072.55 and 7,538.77

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Solution

The fourth proportional to 13,394.66, 20,072.55 and 7,538.77 is: 11,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.66 : 20,072.55 = 7,538.77 : x
  2. Step 2: Convert to fraction form
    13,394.66/20,072.55 = 7,538.77/x
  3. Step 3: Cross multiply
    13,394.66x = 20,072.55 × 7,538.77
  4. Step 4: Simplify right side
    13,394.66x = 151,322,237.40
  5. Step 5: Solve for x
    x = 151,322,237.40/13,394.66
  6. Step 6: Final answer
    x = 11,297.21

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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.