Home / 8,638.08-11,919.36-4,861.44

Finding the Fourth Proportional to 8,638.08, 11,919.36 and 4,861.44

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Solution

The fourth proportional to 8,638.08, 11,919.36 and 4,861.44 is: 6,708.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638.08 : 11,919.36 = 4,861.44 : x
  2. Step 2: Convert to fraction form
    8,638.08/11,919.36 = 4,861.44/x
  3. Step 3: Cross multiply
    8,638.08x = 11,919.36 × 4,861.44
  4. Step 4: Simplify right side
    8,638.08x = 57,945,253.48
  5. Step 5: Solve for x
    x = 57,945,253.48/8,638.08
  6. Step 6: Final answer
    x = 6,708.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.