Home / 12,253.20-18,359.64-11,231.88

Finding the Fourth Proportional to 12,253.20, 18,359.64 and 11,231.88

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Solution

The fourth proportional to 12,253.20, 18,359.64 and 11,231.88 is: 16,829.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.20 : 18,359.64 = 11,231.88 : x
  2. Step 2: Convert to fraction form
    12,253.20/18,359.64 = 11,231.88/x
  3. Step 3: Cross multiply
    12,253.20x = 18,359.64 × 11,231.88
  4. Step 4: Simplify right side
    12,253.20x = 206,213,273.32
  5. Step 5: Solve for x
    x = 206,213,273.32/12,253.20
  6. Step 6: Final answer
    x = 16,829.34

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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.