Home / 17,171.28-25,712.88-11,898.80

Finding the Fourth Proportional to 17,171.28, 25,712.88 and 11,898.80

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Solution

The fourth proportional to 17,171.28, 25,712.88 and 11,898.80 is: 17,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,171.28 : 25,712.88 = 11,898.80 : x
  2. Step 2: Convert to fraction form
    17,171.28/25,712.88 = 11,898.80/x
  3. Step 3: Cross multiply
    17,171.28x = 25,712.88 × 11,898.80
  4. Step 4: Simplify right side
    17,171.28x = 305,952,416.54
  5. Step 5: Solve for x
    x = 305,952,416.54/17,171.28
  6. Step 6: Final answer
    x = 17,817.68

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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.