Home / 8,257.92-11,390.16-5,112.24

Finding the Fourth Proportional to 8,257.92, 11,390.16 and 5,112.24

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Solution

The fourth proportional to 8,257.92, 11,390.16 and 5,112.24 is: 7,051.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.92 : 11,390.16 = 5,112.24 : x
  2. Step 2: Convert to fraction form
    8,257.92/11,390.16 = 5,112.24/x
  3. Step 3: Cross multiply
    8,257.92x = 11,390.16 × 5,112.24
  4. Step 4: Simplify right side
    8,257.92x = 58,229,231.56
  5. Step 5: Solve for x
    x = 58,229,231.56/8,257.92
  6. Step 6: Final answer
    x = 7,051.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.