Home / 11,963.89-16,507.31-6,859.98

Finding the Fourth Proportional to 11,963.89, 16,507.31 and 6,859.98

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Solution

The fourth proportional to 11,963.89, 16,507.31 and 6,859.98 is: 9,465.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.89 : 16,507.31 = 6,859.98 : x
  2. Step 2: Convert to fraction form
    11,963.89/16,507.31 = 6,859.98/x
  3. Step 3: Cross multiply
    11,963.89x = 16,507.31 × 6,859.98
  4. Step 4: Simplify right side
    11,963.89x = 113,239,816.45
  5. Step 5: Solve for x
    x = 113,239,816.45/11,963.89
  6. Step 6: Final answer
    x = 9,465.13

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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.