Home / 11,001.42-15,179.31-6,221.46

Finding the Fourth Proportional to 11,001.42, 15,179.31 and 6,221.46

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Solution

The fourth proportional to 11,001.42, 15,179.31 and 6,221.46 is: 8,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.42 : 15,179.31 = 6,221.46 : x
  2. Step 2: Convert to fraction form
    11,001.42/15,179.31 = 6,221.46/x
  3. Step 3: Cross multiply
    11,001.42x = 15,179.31 × 6,221.46
  4. Step 4: Simplify right side
    11,001.42x = 94,437,469.99
  5. Step 5: Solve for x
    x = 94,437,469.99/11,001.42
  6. Step 6: Final answer
    x = 8,584.12

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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.