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Finding the Fourth Proportional to 8,609.18, 12,902.94 and 4,660.28

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Solution

The fourth proportional to 8,609.18, 12,902.94 and 4,660.28 is: 6,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.18 : 12,902.94 = 4,660.28 : x
  2. Step 2: Convert to fraction form
    8,609.18/12,902.94 = 4,660.28/x
  3. Step 3: Cross multiply
    8,609.18x = 12,902.94 × 4,660.28
  4. Step 4: Simplify right side
    8,609.18x = 60,131,313.22
  5. Step 5: Solve for x
    x = 60,131,313.22/8,609.18
  6. Step 6: Final answer
    x = 6,984.56

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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.