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Finding the Fourth Proportional to 17,231.71, 25,826.71 and 7,858.90

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Solution

The fourth proportional to 17,231.71, 25,826.71 and 7,858.90 is: 11,778.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,231.71 : 25,826.71 = 7,858.90 : x
  2. Step 2: Convert to fraction form
    17,231.71/25,826.71 = 7,858.90/x
  3. Step 3: Cross multiply
    17,231.71x = 25,826.71 × 7,858.90
  4. Step 4: Simplify right side
    17,231.71x = 202,969,531.22
  5. Step 5: Solve for x
    x = 202,969,531.22/17,231.71
  6. Step 6: Final answer
    x = 11,778.84

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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.