Home / 10,825.89-16,239.11-5,278.47

Finding the Fourth Proportional to 10,825.89, 16,239.11 and 5,278.47

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Solution

The fourth proportional to 10,825.89, 16,239.11 and 5,278.47 is: 7,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,825.89 : 16,239.11 = 5,278.47 : x
  2. Step 2: Convert to fraction form
    10,825.89/16,239.11 = 5,278.47/x
  3. Step 3: Cross multiply
    10,825.89x = 16,239.11 × 5,278.47
  4. Step 4: Simplify right side
    10,825.89x = 85,717,628.57
  5. Step 5: Solve for x
    x = 85,717,628.57/10,825.89
  6. Step 6: Final answer
    x = 7,917.84

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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.