Home / 13,216.52-18,228.30-11,233.64

Finding the Fourth Proportional to 13,216.52, 18,228.30 and 11,233.64

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Solution

The fourth proportional to 13,216.52, 18,228.30 and 11,233.64 is: 15,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.52 : 18,228.30 = 11,233.64 : x
  2. Step 2: Convert to fraction form
    13,216.52/18,228.30 = 11,233.64/x
  3. Step 3: Cross multiply
    13,216.52x = 18,228.30 × 11,233.64
  4. Step 4: Simplify right side
    13,216.52x = 204,770,160.01
  5. Step 5: Solve for x
    x = 204,770,160.01/13,216.52
  6. Step 6: Final answer
    x = 15,493.50

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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.