Home / 17,240.75-25,837.20-7,857.84

Finding the Fourth Proportional to 17,240.75, 25,837.20 and 7,857.84

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Solution

The fourth proportional to 17,240.75, 25,837.20 and 7,857.84 is: 11,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,240.75 : 25,837.20 = 7,857.84 : x
  2. Step 2: Convert to fraction form
    17,240.75/25,837.20 = 7,857.84/x
  3. Step 3: Cross multiply
    17,240.75x = 25,837.20 × 7,857.84
  4. Step 4: Simplify right side
    17,240.75x = 203,024,484.64
  5. Step 5: Solve for x
    x = 203,024,484.64/17,240.75
  6. Step 6: Final answer
    x = 11,775.85

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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.