Home / 11,986.62-17,947.63-7,816.28

Finding the Fourth Proportional to 11,986.62, 17,947.63 and 7,816.28

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Solution

The fourth proportional to 11,986.62, 17,947.63 and 7,816.28 is: 11,703.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.62 : 17,947.63 = 7,816.28 : x
  2. Step 2: Convert to fraction form
    11,986.62/17,947.63 = 7,816.28/x
  3. Step 3: Cross multiply
    11,986.62x = 17,947.63 × 7,816.28
  4. Step 4: Simplify right side
    11,986.62x = 140,283,701.42
  5. Step 5: Solve for x
    x = 140,283,701.42/11,986.62
  6. Step 6: Final answer
    x = 11,703.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.