Home / 7,769.10-11,640.69-5,456.46

Finding the Fourth Proportional to 7,769.10, 11,640.69 and 5,456.46

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Solution

The fourth proportional to 7,769.10, 11,640.69 and 5,456.46 is: 8,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.10 : 11,640.69 = 5,456.46 : x
  2. Step 2: Convert to fraction form
    7,769.10/11,640.69 = 5,456.46/x
  3. Step 3: Cross multiply
    7,769.10x = 11,640.69 × 5,456.46
  4. Step 4: Simplify right side
    7,769.10x = 63,516,959.36
  5. Step 5: Solve for x
    x = 63,516,959.36/7,769.10
  6. Step 6: Final answer
    x = 8,175.59

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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.