Home / 13,822.24-20,738.52-8,279.50

Finding the Fourth Proportional to 13,822.24, 20,738.52 and 8,279.50

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Solution

The fourth proportional to 13,822.24, 20,738.52 and 8,279.50 is: 12,422.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.24 : 20,738.52 = 8,279.50 : x
  2. Step 2: Convert to fraction form
    13,822.24/20,738.52 = 8,279.50/x
  3. Step 3: Cross multiply
    13,822.24x = 20,738.52 × 8,279.50
  4. Step 4: Simplify right side
    13,822.24x = 171,704,576.34
  5. Step 5: Solve for x
    x = 171,704,576.34/13,822.24
  6. Step 6: Final answer
    x = 12,422.34

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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.