Home / 19,701.52-27,189.14-11,318.56

Finding the Fourth Proportional to 19,701.52, 27,189.14 and 11,318.56

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Solution

The fourth proportional to 19,701.52, 27,189.14 and 11,318.56 is: 15,620.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.52 : 27,189.14 = 11,318.56 : x
  2. Step 2: Convert to fraction form
    19,701.52/27,189.14 = 11,318.56/x
  3. Step 3: Cross multiply
    19,701.52x = 27,189.14 × 11,318.56
  4. Step 4: Simplify right side
    19,701.52x = 307,741,912.44
  5. Step 5: Solve for x
    x = 307,741,912.44/19,701.52
  6. Step 6: Final answer
    x = 15,620.21

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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.