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Finding the Fourth Proportional to 8,604.82, 12,915.33 and 5,324.32

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Solution

The fourth proportional to 8,604.82, 12,915.33 and 5,324.32 is: 7,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.82 : 12,915.33 = 5,324.32 : x
  2. Step 2: Convert to fraction form
    8,604.82/12,915.33 = 5,324.32/x
  3. Step 3: Cross multiply
    8,604.82x = 12,915.33 × 5,324.32
  4. Step 4: Simplify right side
    8,604.82x = 68,765,349.83
  5. Step 5: Solve for x
    x = 68,765,349.83/8,604.82
  6. Step 6: Final answer
    x = 7,991.49

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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.