Home / 11,179.88-15,428.64-6,144.48

Finding the Fourth Proportional to 11,179.88, 15,428.64 and 6,144.48

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Solution

The fourth proportional to 11,179.88, 15,428.64 and 6,144.48 is: 8,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.88 : 15,428.64 = 6,144.48 : x
  2. Step 2: Convert to fraction form
    11,179.88/15,428.64 = 6,144.48/x
  3. Step 3: Cross multiply
    11,179.88x = 15,428.64 × 6,144.48
  4. Step 4: Simplify right side
    11,179.88x = 94,801,010.42
  5. Step 5: Solve for x
    x = 94,801,010.42/11,179.88
  6. Step 6: Final answer
    x = 8,479.61

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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.