Home / 7,514.70-11,272.05-5,181.90

Finding the Fourth Proportional to 7,514.70, 11,272.05 and 5,181.90

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Solution

The fourth proportional to 7,514.70, 11,272.05 and 5,181.90 is: 7,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,514.70 : 11,272.05 = 5,181.90 : x
  2. Step 2: Convert to fraction form
    7,514.70/11,272.05 = 5,181.90/x
  3. Step 3: Cross multiply
    7,514.70x = 11,272.05 × 5,181.90
  4. Step 4: Simplify right side
    7,514.70x = 58,410,635.90
  5. Step 5: Solve for x
    x = 58,410,635.90/7,514.70
  6. Step 6: Final answer
    x = 7,772.85

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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.