Home / 11,685.36-16,117.78-6,966

Finding the Fourth Proportional to 11,685.36, 16,117.78 and 6,966

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Solution

The fourth proportional to 11,685.36, 16,117.78 and 6,966 is: 9,608.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.36 : 16,117.78 = 6,966 : x
  2. Step 2: Convert to fraction form
    11,685.36/16,117.78 = 6,966/x
  3. Step 3: Cross multiply
    11,685.36x = 16,117.78 × 6,966
  4. Step 4: Simplify right side
    11,685.36x = 112,276,455.48
  5. Step 5: Solve for x
    x = 112,276,455.48/11,685.36
  6. Step 6: Final answer
    x = 9,608.30

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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.