Home / 8,665.26-12,997.68-3,117.54

Finding the Fourth Proportional to 8,665.26, 12,997.68 and 3,117.54

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Solution

The fourth proportional to 8,665.26, 12,997.68 and 3,117.54 is: 4,676.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.26 : 12,997.68 = 3,117.54 : x
  2. Step 2: Convert to fraction form
    8,665.26/12,997.68 = 3,117.54/x
  3. Step 3: Cross multiply
    8,665.26x = 12,997.68 × 3,117.54
  4. Step 4: Simplify right side
    8,665.26x = 40,520,787.31
  5. Step 5: Solve for x
    x = 40,520,787.31/8,665.26
  6. Step 6: Final answer
    x = 4,676.23

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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.