Home / 10,181.62-15,272.09-2,785.92

Finding the Fourth Proportional to 10,181.62, 15,272.09 and 2,785.92

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Solution

The fourth proportional to 10,181.62, 15,272.09 and 2,785.92 is: 4,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,181.62 : 15,272.09 = 2,785.92 : x
  2. Step 2: Convert to fraction form
    10,181.62/15,272.09 = 2,785.92/x
  3. Step 3: Cross multiply
    10,181.62x = 15,272.09 × 2,785.92
  4. Step 4: Simplify right side
    10,181.62x = 42,546,818.84
  5. Step 5: Solve for x
    x = 42,546,818.84/10,181.62
  6. Step 6: Final answer
    x = 4,178.79

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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.