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Finding the Fourth Proportional to 11,878.62, 17,812.67 and 6,330.93

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Solution

The fourth proportional to 11,878.62, 17,812.67 and 6,330.93 is: 9,493.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.62 : 17,812.67 = 6,330.93 : x
  2. Step 2: Convert to fraction form
    11,878.62/17,812.67 = 6,330.93/x
  3. Step 3: Cross multiply
    11,878.62x = 17,812.67 × 6,330.93
  4. Step 4: Simplify right side
    11,878.62x = 112,770,735.23
  5. Step 5: Solve for x
    x = 112,770,735.23/11,878.62
  6. Step 6: Final answer
    x = 9,493.59

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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.