Home / 11,120.97-16,688.04-4,105.88

Finding the Fourth Proportional to 11,120.97, 16,688.04 and 4,105.88

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Solution

The fourth proportional to 11,120.97, 16,688.04 and 4,105.88 is: 6,161.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.97 : 16,688.04 = 4,105.88 : x
  2. Step 2: Convert to fraction form
    11,120.97/16,688.04 = 4,105.88/x
  3. Step 3: Cross multiply
    11,120.97x = 16,688.04 × 4,105.88
  4. Step 4: Simplify right side
    11,120.97x = 68,518,985.71
  5. Step 5: Solve for x
    x = 68,518,985.71/11,120.97
  6. Step 6: Final answer
    x = 6,161.24

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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.