Home / 18,279.50-25,222.98-10,321.54

Finding the Fourth Proportional to 18,279.50, 25,222.98 and 10,321.54

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Solution

The fourth proportional to 18,279.50, 25,222.98 and 10,321.54 is: 14,242.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.50 : 25,222.98 = 10,321.54 : x
  2. Step 2: Convert to fraction form
    18,279.50/25,222.98 = 10,321.54/x
  3. Step 3: Cross multiply
    18,279.50x = 25,222.98 × 10,321.54
  4. Step 4: Simplify right side
    18,279.50x = 260,339,996.99
  5. Step 5: Solve for x
    x = 260,339,996.99/18,279.50
  6. Step 6: Final answer
    x = 14,242.18

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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.