Home / 10,761.36-16,141.56-4,917.90

Finding the Fourth Proportional to 10,761.36, 16,141.56 and 4,917.90

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Solution

The fourth proportional to 10,761.36, 16,141.56 and 4,917.90 is: 7,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,761.36 : 16,141.56 = 4,917.90 : x
  2. Step 2: Convert to fraction form
    10,761.36/16,141.56 = 4,917.90/x
  3. Step 3: Cross multiply
    10,761.36x = 16,141.56 × 4,917.90
  4. Step 4: Simplify right side
    10,761.36x = 79,382,577.92
  5. Step 5: Solve for x
    x = 79,382,577.92/10,761.36
  6. Step 6: Final answer
    x = 7,376.63

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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.