Home / 8,586.20-12,877.75-3,039.60

Finding the Fourth Proportional to 8,586.20, 12,877.75 and 3,039.60

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Solution

The fourth proportional to 8,586.20, 12,877.75 and 3,039.60 is: 4,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.20 : 12,877.75 = 3,039.60 : x
  2. Step 2: Convert to fraction form
    8,586.20/12,877.75 = 3,039.60/x
  3. Step 3: Cross multiply
    8,586.20x = 12,877.75 × 3,039.60
  4. Step 4: Simplify right side
    8,586.20x = 39,143,208.90
  5. Step 5: Solve for x
    x = 39,143,208.90/8,586.20
  6. Step 6: Final answer
    x = 4,558.85

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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.