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Finding the Fourth Proportional to 8,609.65, 12,906.27 and 2,762.26

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Solution

The fourth proportional to 8,609.65, 12,906.27 and 2,762.26 is: 4,140.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.65 : 12,906.27 = 2,762.26 : x
  2. Step 2: Convert to fraction form
    8,609.65/12,906.27 = 2,762.26/x
  3. Step 3: Cross multiply
    8,609.65x = 12,906.27 × 2,762.26
  4. Step 4: Simplify right side
    8,609.65x = 35,650,441.10
  5. Step 5: Solve for x
    x = 35,650,441.10/8,609.65
  6. Step 6: Final answer
    x = 4,140.76

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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.