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Finding the Fourth Proportional to 17,205.68, 25,789.84 and 7,216.88

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Solution

The fourth proportional to 17,205.68, 25,789.84 and 7,216.88 is: 10,817.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,205.68 : 25,789.84 = 7,216.88 : x
  2. Step 2: Convert to fraction form
    17,205.68/25,789.84 = 7,216.88/x
  3. Step 3: Cross multiply
    17,205.68x = 25,789.84 × 7,216.88
  4. Step 4: Simplify right side
    17,205.68x = 186,122,180.50
  5. Step 5: Solve for x
    x = 186,122,180.50/17,205.68
  6. Step 6: Final answer
    x = 10,817.48

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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.