Home / 8,134.82-11,221.93-5,145.62

Finding the Fourth Proportional to 8,134.82, 11,221.93 and 5,145.62

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Solution

The fourth proportional to 8,134.82, 11,221.93 and 5,145.62 is: 7,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,134.82 : 11,221.93 = 5,145.62 : x
  2. Step 2: Convert to fraction form
    8,134.82/11,221.93 = 5,145.62/x
  3. Step 3: Cross multiply
    8,134.82x = 11,221.93 × 5,145.62
  4. Step 4: Simplify right side
    8,134.82x = 57,743,787.45
  5. Step 5: Solve for x
    x = 57,743,787.45/8,134.82
  6. Step 6: Final answer
    x = 7,098.35

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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.