Home / 11,138.11-15,370.79-6,102.00

Finding the Fourth Proportional to 11,138.11, 15,370.79 and 6,102.00

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Solution

The fourth proportional to 11,138.11, 15,370.79 and 6,102.00 is: 8,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.11 : 15,370.79 = 6,102.00 : x
  2. Step 2: Convert to fraction form
    11,138.11/15,370.79 = 6,102.00/x
  3. Step 3: Cross multiply
    11,138.11x = 15,370.79 × 6,102.00
  4. Step 4: Simplify right side
    11,138.11x = 93,792,564.99
  5. Step 5: Solve for x
    x = 93,792,564.99/11,138.11
  6. Step 6: Final answer
    x = 8,420.87

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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.