Home / 11,811.83-17,720.78-4,416.35

Finding the Fourth Proportional to 11,811.83, 17,720.78 and 4,416.35

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Solution

The fourth proportional to 11,811.83, 17,720.78 and 4,416.35 is: 6,625.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.83 : 17,720.78 = 4,416.35 : x
  2. Step 2: Convert to fraction form
    11,811.83/17,720.78 = 4,416.35/x
  3. Step 3: Cross multiply
    11,811.83x = 17,720.78 × 4,416.35
  4. Step 4: Simplify right side
    11,811.83x = 78,261,056.07
  5. Step 5: Solve for x
    x = 78,261,056.07/11,811.83
  6. Step 6: Final answer
    x = 6,625.65

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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.