Home / 11,761.80-17,649.60-4,371.36

Finding the Fourth Proportional to 11,761.80, 17,649.60 and 4,371.36

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Solution

The fourth proportional to 11,761.80, 17,649.60 and 4,371.36 is: 6,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,761.80 : 17,649.60 = 4,371.36 : x
  2. Step 2: Convert to fraction form
    11,761.80/17,649.60 = 4,371.36/x
  3. Step 3: Cross multiply
    11,761.80x = 17,649.60 × 4,371.36
  4. Step 4: Simplify right side
    11,761.80x = 77,152,755.46
  5. Step 5: Solve for x
    x = 77,152,755.46/11,761.80
  6. Step 6: Final answer
    x = 6,559.60

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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.