Home / 19,687.70-27,171.45-11,304.02

Finding the Fourth Proportional to 19,687.70, 27,171.45 and 11,304.02

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Solution

The fourth proportional to 19,687.70, 27,171.45 and 11,304.02 is: 15,600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.70 : 27,171.45 = 11,304.02 : x
  2. Step 2: Convert to fraction form
    19,687.70/27,171.45 = 11,304.02/x
  3. Step 3: Cross multiply
    19,687.70x = 27,171.45 × 11,304.02
  4. Step 4: Simplify right side
    19,687.70x = 307,146,614.23
  5. Step 5: Solve for x
    x = 307,146,614.23/19,687.70
  6. Step 6: Final answer
    x = 15,600.94

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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.