Home / 13,752.20-20,633.10-13,272.20

Finding the Fourth Proportional to 13,752.20, 20,633.10 and 13,272.20

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Solution

The fourth proportional to 13,752.20, 20,633.10 and 13,272.20 is: 19,912.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.20 : 20,633.10 = 13,272.20 : x
  2. Step 2: Convert to fraction form
    13,752.20/20,633.10 = 13,272.20/x
  3. Step 3: Cross multiply
    13,752.20x = 20,633.10 × 13,272.20
  4. Step 4: Simplify right side
    13,752.20x = 273,846,629.82
  5. Step 5: Solve for x
    x = 273,846,629.82/13,752.20
  6. Step 6: Final answer
    x = 19,912.93

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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.