Home / 11,816.76-17,690.82-6,871.32

Finding the Fourth Proportional to 11,816.76, 17,690.82 and 6,871.32

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Solution

The fourth proportional to 11,816.76, 17,690.82 and 6,871.32 is: 10,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.76 : 17,690.82 = 6,871.32 : x
  2. Step 2: Convert to fraction form
    11,816.76/17,690.82 = 6,871.32/x
  3. Step 3: Cross multiply
    11,816.76x = 17,690.82 × 6,871.32
  4. Step 4: Simplify right side
    11,816.76x = 121,559,285.28
  5. Step 5: Solve for x
    x = 121,559,285.28/11,816.76
  6. Step 6: Final answer
    x = 10,287.02

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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.