Home / 19,694.52-27,178.20-11,311.02

Finding the Fourth Proportional to 19,694.52, 27,178.20 and 11,311.02

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Solution

The fourth proportional to 19,694.52, 27,178.20 and 11,311.02 is: 15,609.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.52 : 27,178.20 = 11,311.02 : x
  2. Step 2: Convert to fraction form
    19,694.52/27,178.20 = 11,311.02/x
  3. Step 3: Cross multiply
    19,694.52x = 27,178.20 × 11,311.02
  4. Step 4: Simplify right side
    19,694.52x = 307,413,163.76
  5. Step 5: Solve for x
    x = 307,413,163.76/19,694.52
  6. Step 6: Final answer
    x = 15,609.07

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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.