Home / 18,180.87-27,279.29-8,828.07

Finding the Fourth Proportional to 18,180.87, 27,279.29 and 8,828.07

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Solution

The fourth proportional to 18,180.87, 27,279.29 and 8,828.07 is: 13,245.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.87 : 27,279.29 = 8,828.07 : x
  2. Step 2: Convert to fraction form
    18,180.87/27,279.29 = 8,828.07/x
  3. Step 3: Cross multiply
    18,180.87x = 27,279.29 × 8,828.07
  4. Step 4: Simplify right side
    18,180.87x = 240,823,481.67
  5. Step 5: Solve for x
    x = 240,823,481.67/18,180.87
  6. Step 6: Final answer
    x = 13,245.98

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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.