Home / 13,755.20-18,982.27-7,467.58

Finding the Fourth Proportional to 13,755.20, 18,982.27 and 7,467.58

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Solution

The fourth proportional to 13,755.20, 18,982.27 and 7,467.58 is: 10,305.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.20 : 18,982.27 = 7,467.58 : x
  2. Step 2: Convert to fraction form
    13,755.20/18,982.27 = 7,467.58/x
  3. Step 3: Cross multiply
    13,755.20x = 18,982.27 × 7,467.58
  4. Step 4: Simplify right side
    13,755.20x = 141,751,567.10
  5. Step 5: Solve for x
    x = 141,751,567.10/13,755.20
  6. Step 6: Final answer
    x = 10,305.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.