Home / 11,139.55-15,372.60-6,103.96

Finding the Fourth Proportional to 11,139.55, 15,372.60 and 6,103.96

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Solution

The fourth proportional to 11,139.55, 15,372.60 and 6,103.96 is: 8,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.55 : 15,372.60 = 6,103.96 : x
  2. Step 2: Convert to fraction form
    11,139.55/15,372.60 = 6,103.96/x
  3. Step 3: Cross multiply
    11,139.55x = 15,372.60 × 6,103.96
  4. Step 4: Simplify right side
    11,139.55x = 93,833,735.50
  5. Step 5: Solve for x
    x = 93,833,735.50/11,139.55
  6. Step 6: Final answer
    x = 8,423.48

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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.