Home / 18,279.24-27,418.74-5,131.62

Finding the Fourth Proportional to 18,279.24, 27,418.74 and 5,131.62

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Solution

The fourth proportional to 18,279.24, 27,418.74 and 5,131.62 is: 7,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.24 : 27,418.74 = 5,131.62 : x
  2. Step 2: Convert to fraction form
    18,279.24/27,418.74 = 5,131.62/x
  3. Step 3: Cross multiply
    18,279.24x = 27,418.74 × 5,131.62
  4. Step 4: Simplify right side
    18,279.24x = 140,702,554.56
  5. Step 5: Solve for x
    x = 140,702,554.56/18,279.24
  6. Step 6: Final answer
    x = 7,697.40

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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.