Home / 10,440.87-15,661.35-2,649.68

Finding the Fourth Proportional to 10,440.87, 15,661.35 and 2,649.68

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Solution

The fourth proportional to 10,440.87, 15,661.35 and 2,649.68 is: 3,974.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.87 : 15,661.35 = 2,649.68 : x
  2. Step 2: Convert to fraction form
    10,440.87/15,661.35 = 2,649.68/x
  3. Step 3: Cross multiply
    10,440.87x = 15,661.35 × 2,649.68
  4. Step 4: Simplify right side
    10,440.87x = 41,497,546.29
  5. Step 5: Solve for x
    x = 41,497,546.29/10,440.87
  6. Step 6: Final answer
    x = 3,974.53

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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.