Home / 19,662.38-27,133.91-13,697.36

Finding the Fourth Proportional to 19,662.38, 27,133.91 and 13,697.36

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Solution

The fourth proportional to 19,662.38, 27,133.91 and 13,697.36 is: 18,902.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.38 : 27,133.91 = 13,697.36 : x
  2. Step 2: Convert to fraction form
    19,662.38/27,133.91 = 13,697.36/x
  3. Step 3: Cross multiply
    19,662.38x = 27,133.91 × 13,697.36
  4. Step 4: Simplify right side
    19,662.38x = 371,662,933.48
  5. Step 5: Solve for x
    x = 371,662,933.48/19,662.38
  6. Step 6: Final answer
    x = 18,902.24

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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.