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Finding the Fourth Proportional to 8,683, 11,982.78 and 5,323.88

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Solution

The fourth proportional to 8,683, 11,982.78 and 5,323.88 is: 7,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683 : 11,982.78 = 5,323.88 : x
  2. Step 2: Convert to fraction form
    8,683/11,982.78 = 5,323.88/x
  3. Step 3: Cross multiply
    8,683x = 11,982.78 × 5,323.88
  4. Step 4: Simplify right side
    8,683x = 63,794,882.79
  5. Step 5: Solve for x
    x = 63,794,882.79/8,683
  6. Step 6: Final answer
    x = 7,347.10

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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.