Home / 10,440.57-15,660.81-2,649.36

Finding the Fourth Proportional to 10,440.57, 15,660.81 and 2,649.36

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Solution

The fourth proportional to 10,440.57, 15,660.81 and 2,649.36 is: 3,974.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.57 : 15,660.81 = 2,649.36 : x
  2. Step 2: Convert to fraction form
    10,440.57/15,660.81 = 2,649.36/x
  3. Step 3: Cross multiply
    10,440.57x = 15,660.81 × 2,649.36
  4. Step 4: Simplify right side
    10,440.57x = 41,491,123.58
  5. Step 5: Solve for x
    x = 41,491,123.58/10,440.57
  6. Step 6: Final answer
    x = 3,974.03

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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.