Home / 8,302.85-12,455.99-3,917.91

Finding the Fourth Proportional to 8,302.85, 12,455.99 and 3,917.91

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Solution

The fourth proportional to 8,302.85, 12,455.99 and 3,917.91 is: 5,877.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.85 : 12,455.99 = 3,917.91 : x
  2. Step 2: Convert to fraction form
    8,302.85/12,455.99 = 3,917.91/x
  3. Step 3: Cross multiply
    8,302.85x = 12,455.99 × 3,917.91
  4. Step 4: Simplify right side
    8,302.85x = 48,801,457.58
  5. Step 5: Solve for x
    x = 48,801,457.58/8,302.85
  6. Step 6: Final answer
    x = 5,877.68

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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.