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Finding the Fourth Proportional to 8,608.57, 12,915.29 and 4,450.84

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Solution

The fourth proportional to 8,608.57, 12,915.29 and 4,450.84 is: 6,677.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.57 : 12,915.29 = 4,450.84 : x
  2. Step 2: Convert to fraction form
    8,608.57/12,915.29 = 4,450.84/x
  3. Step 3: Cross multiply
    8,608.57x = 12,915.29 × 4,450.84
  4. Step 4: Simplify right side
    8,608.57x = 57,483,889.34
  5. Step 5: Solve for x
    x = 57,483,889.34/8,608.57
  6. Step 6: Final answer
    x = 6,677.52

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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.