Home / 18,279.85-27,422.21-5,132.34

Finding the Fourth Proportional to 18,279.85, 27,422.21 and 5,132.34

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Solution

The fourth proportional to 18,279.85, 27,422.21 and 5,132.34 is: 7,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.85 : 27,422.21 = 5,132.34 : x
  2. Step 2: Convert to fraction form
    18,279.85/27,422.21 = 5,132.34/x
  3. Step 3: Cross multiply
    18,279.85x = 27,422.21 × 5,132.34
  4. Step 4: Simplify right side
    18,279.85x = 140,740,105.27
  5. Step 5: Solve for x
    x = 140,740,105.27/18,279.85
  6. Step 6: Final answer
    x = 7,699.19

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1.5x scale

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.