Home / 13,755.44-18,982.59-8,090.43

Finding the Fourth Proportional to 13,755.44, 18,982.59 and 8,090.43

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Solution

The fourth proportional to 13,755.44, 18,982.59 and 8,090.43 is: 11,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.44 : 18,982.59 = 8,090.43 : x
  2. Step 2: Convert to fraction form
    13,755.44/18,982.59 = 8,090.43/x
  3. Step 3: Cross multiply
    13,755.44x = 18,982.59 × 8,090.43
  4. Step 4: Simplify right side
    13,755.44x = 153,577,315.61
  5. Step 5: Solve for x
    x = 153,577,315.61/13,755.44
  6. Step 6: Final answer
    x = 11,164.84

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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.