Home / 11,186.51-15,435.66-6,469.88

Finding the Fourth Proportional to 11,186.51, 15,435.66 and 6,469.88

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Solution

The fourth proportional to 11,186.51, 15,435.66 and 6,469.88 is: 8,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.51 : 15,435.66 = 6,469.88 : x
  2. Step 2: Convert to fraction form
    11,186.51/15,435.66 = 6,469.88/x
  3. Step 3: Cross multiply
    11,186.51x = 15,435.66 × 6,469.88
  4. Step 4: Simplify right side
    11,186.51x = 99,866,815.00
  5. Step 5: Solve for x
    x = 99,866,815.00/11,186.51
  6. Step 6: Final answer
    x = 8,927.44

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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.