Home / 11,812.89-17,722.53-4,418.10

Finding the Fourth Proportional to 11,812.89, 17,722.53 and 4,418.10

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Solution

The fourth proportional to 11,812.89, 17,722.53 and 4,418.10 is: 6,628.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.89 : 17,722.53 = 4,418.10 : x
  2. Step 2: Convert to fraction form
    11,812.89/17,722.53 = 4,418.10/x
  3. Step 3: Cross multiply
    11,812.89x = 17,722.53 × 4,418.10
  4. Step 4: Simplify right side
    11,812.89x = 78,299,909.79
  5. Step 5: Solve for x
    x = 78,299,909.79/11,812.89
  6. Step 6: Final answer
    x = 6,628.34

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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.