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Finding the Fourth Proportional to 11,888.62, 17,815.91 and 6,683.56

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Solution

The fourth proportional to 11,888.62, 17,815.91 and 6,683.56 is: 10,015.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.62 : 17,815.91 = 6,683.56 : x
  2. Step 2: Convert to fraction form
    11,888.62/17,815.91 = 6,683.56/x
  3. Step 3: Cross multiply
    11,888.62x = 17,815.91 × 6,683.56
  4. Step 4: Simplify right side
    11,888.62x = 119,073,703.44
  5. Step 5: Solve for x
    x = 119,073,703.44/11,888.62
  6. Step 6: Final answer
    x = 10,015.77

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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.