Home / 11,139.61-15,372.62-6,104.15

Finding the Fourth Proportional to 11,139.61, 15,372.62 and 6,104.15

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Solution

The fourth proportional to 11,139.61, 15,372.62 and 6,104.15 is: 8,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.61 : 15,372.62 = 6,104.15 : x
  2. Step 2: Convert to fraction form
    11,139.61/15,372.62 = 6,104.15/x
  3. Step 3: Cross multiply
    11,139.61x = 15,372.62 × 6,104.15
  4. Step 4: Simplify right side
    11,139.61x = 93,836,778.37
  5. Step 5: Solve for x
    x = 93,836,778.37/11,139.61
  6. Step 6: Final answer
    x = 8,423.70

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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.