Home / 13,591.22-18,755.33-7,623

Finding the Fourth Proportional to 13,591.22, 18,755.33 and 7,623

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Solution

The fourth proportional to 13,591.22, 18,755.33 and 7,623 is: 10,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.22 : 18,755.33 = 7,623 : x
  2. Step 2: Convert to fraction form
    13,591.22/18,755.33 = 7,623/x
  3. Step 3: Cross multiply
    13,591.22x = 18,755.33 × 7,623
  4. Step 4: Simplify right side
    13,591.22x = 142,971,842.48
  5. Step 5: Solve for x
    x = 142,971,842.48/13,591.22
  6. Step 6: Final answer
    x = 10,519.43

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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.