Home / 11,905.32-17,862.86-5,329.80

Finding the Fourth Proportional to 11,905.32, 17,862.86 and 5,329.80

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Solution

The fourth proportional to 11,905.32, 17,862.86 and 5,329.80 is: 7,996.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.32 : 17,862.86 = 5,329.80 : x
  2. Step 2: Convert to fraction form
    11,905.32/17,862.86 = 5,329.80/x
  3. Step 3: Cross multiply
    11,905.32x = 17,862.86 × 5,329.80
  4. Step 4: Simplify right side
    11,905.32x = 95,205,471.23
  5. Step 5: Solve for x
    x = 95,205,471.23/11,905.32
  6. Step 6: Final answer
    x = 7,996.88

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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.