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Finding the Fourth Proportional to 8,557.62, 11,802.33 and 6,786.42

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Solution

The fourth proportional to 8,557.62, 11,802.33 and 6,786.42 is: 9,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.62 : 11,802.33 = 6,786.42 : x
  2. Step 2: Convert to fraction form
    8,557.62/11,802.33 = 6,786.42/x
  3. Step 3: Cross multiply
    8,557.62x = 11,802.33 × 6,786.42
  4. Step 4: Simplify right side
    8,557.62x = 80,095,568.36
  5. Step 5: Solve for x
    x = 80,095,568.36/8,557.62
  6. Step 6: Final answer
    x = 9,359.56

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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.