Home / 17,129.71-25,709.15-6,748.75

Finding the Fourth Proportional to 17,129.71, 25,709.15 and 6,748.75

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Solution

The fourth proportional to 17,129.71, 25,709.15 and 6,748.75 is: 10,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.71 : 25,709.15 = 6,748.75 : x
  2. Step 2: Convert to fraction form
    17,129.71/25,709.15 = 6,748.75/x
  3. Step 3: Cross multiply
    17,129.71x = 25,709.15 × 6,748.75
  4. Step 4: Simplify right side
    17,129.71x = 173,504,592.32
  5. Step 5: Solve for x
    x = 173,504,592.32/17,129.71
  6. Step 6: Final answer
    x = 10,128.87

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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.