Home / 14,279.55-21,418.79-3,749.48

Finding the Fourth Proportional to 14,279.55, 21,418.79 and 3,749.48

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Solution

The fourth proportional to 14,279.55, 21,418.79 and 3,749.48 is: 5,624.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.55 : 21,418.79 = 3,749.48 : x
  2. Step 2: Convert to fraction form
    14,279.55/21,418.79 = 3,749.48/x
  3. Step 3: Cross multiply
    14,279.55x = 21,418.79 × 3,749.48
  4. Step 4: Simplify right side
    14,279.55x = 80,309,217.64
  5. Step 5: Solve for x
    x = 80,309,217.64/14,279.55
  6. Step 6: Final answer
    x = 5,624.07

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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.