Home / 14,292.90-19,757.25-11,921.22

Finding the Fourth Proportional to 14,292.90, 19,757.25 and 11,921.22

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Solution

The fourth proportional to 14,292.90, 19,757.25 and 11,921.22 is: 16,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,292.90 : 19,757.25 = 11,921.22 : x
  2. Step 2: Convert to fraction form
    14,292.90/19,757.25 = 11,921.22/x
  3. Step 3: Cross multiply
    14,292.90x = 19,757.25 × 11,921.22
  4. Step 4: Simplify right side
    14,292.90x = 235,530,523.85
  5. Step 5: Solve for x
    x = 235,530,523.85/14,292.90
  6. Step 6: Final answer
    x = 16,478.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.