Home / 11,720.15-17,578.33-4,328.09

Finding the Fourth Proportional to 11,720.15, 17,578.33 and 4,328.09

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Solution

The fourth proportional to 11,720.15, 17,578.33 and 4,328.09 is: 6,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.15 : 17,578.33 = 4,328.09 : x
  2. Step 2: Convert to fraction form
    11,720.15/17,578.33 = 4,328.09/x
  3. Step 3: Cross multiply
    11,720.15x = 17,578.33 × 4,328.09
  4. Step 4: Simplify right side
    11,720.15x = 76,080,594.29
  5. Step 5: Solve for x
    x = 76,080,594.29/11,720.15
  6. Step 6: Final answer
    x = 6,491.44

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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.