Home / 11,188.97-15,437.09-6,469.91

Finding the Fourth Proportional to 11,188.97, 15,437.09 and 6,469.91

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Solution

The fourth proportional to 11,188.97, 15,437.09 and 6,469.91 is: 8,926.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.97 : 15,437.09 = 6,469.91 : x
  2. Step 2: Convert to fraction form
    11,188.97/15,437.09 = 6,469.91/x
  3. Step 3: Cross multiply
    11,188.97x = 15,437.09 × 6,469.91
  4. Step 4: Simplify right side
    11,188.97x = 99,876,550.61
  5. Step 5: Solve for x
    x = 99,876,550.61/11,188.97
  6. Step 6: Final answer
    x = 8,926.34

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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.