Home / 18,799.24-28,191.30-12,215.56

Finding the Fourth Proportional to 18,799.24, 28,191.30 and 12,215.56

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Solution

The fourth proportional to 18,799.24, 28,191.30 and 12,215.56 is: 18,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.24 : 28,191.30 = 12,215.56 : x
  2. Step 2: Convert to fraction form
    18,799.24/28,191.30 = 12,215.56/x
  3. Step 3: Cross multiply
    18,799.24x = 28,191.30 × 12,215.56
  4. Step 4: Simplify right side
    18,799.24x = 344,372,516.63
  5. Step 5: Solve for x
    x = 344,372,516.63/18,799.24
  6. Step 6: Final answer
    x = 18,318.43

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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.