Home / 13,755.26-20,631.62-3,894.32

Finding the Fourth Proportional to 13,755.26, 20,631.62 and 3,894.32

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Solution

The fourth proportional to 13,755.26, 20,631.62 and 3,894.32 is: 5,841.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.26 : 20,631.62 = 3,894.32 : x
  2. Step 2: Convert to fraction form
    13,755.26/20,631.62 = 3,894.32/x
  3. Step 3: Cross multiply
    13,755.26x = 20,631.62 × 3,894.32
  4. Step 4: Simplify right side
    13,755.26x = 80,346,130.40
  5. Step 5: Solve for x
    x = 80,346,130.40/13,755.26
  6. Step 6: Final answer
    x = 5,841.12

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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.