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Finding the Fourth Proportional to 8,217.04, 11,324.64 and 6,486.88

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Solution

The fourth proportional to 8,217.04, 11,324.64 and 6,486.88 is: 8,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.04 : 11,324.64 = 6,486.88 : x
  2. Step 2: Convert to fraction form
    8,217.04/11,324.64 = 6,486.88/x
  3. Step 3: Cross multiply
    8,217.04x = 11,324.64 × 6,486.88
  4. Step 4: Simplify right side
    8,217.04x = 73,461,580.72
  5. Step 5: Solve for x
    x = 73,461,580.72/8,217.04
  6. Step 6: Final answer
    x = 8,940.15

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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.