Home / 15,138.90-22,716.54-6,379.92

Finding the Fourth Proportional to 15,138.90, 22,716.54 and 6,379.92

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Solution

The fourth proportional to 15,138.90, 22,716.54 and 6,379.92 is: 9,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.90 : 22,716.54 = 6,379.92 : x
  2. Step 2: Convert to fraction form
    15,138.90/22,716.54 = 6,379.92/x
  3. Step 3: Cross multiply
    15,138.90x = 22,716.54 × 6,379.92
  4. Step 4: Simplify right side
    15,138.90x = 144,929,707.88
  5. Step 5: Solve for x
    x = 144,929,707.88/15,138.90
  6. Step 6: Final answer
    x = 9,573.33

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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.