Home / 10,278.36-15,418.44-4,435.20

Finding the Fourth Proportional to 10,278.36, 15,418.44 and 4,435.20

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Solution

The fourth proportional to 10,278.36, 15,418.44 and 4,435.20 is: 6,653.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.36 : 15,418.44 = 4,435.20 : x
  2. Step 2: Convert to fraction form
    10,278.36/15,418.44 = 4,435.20/x
  3. Step 3: Cross multiply
    10,278.36x = 15,418.44 × 4,435.20
  4. Step 4: Simplify right side
    10,278.36x = 68,383,865.09
  5. Step 5: Solve for x
    x = 68,383,865.09/10,278.36
  6. Step 6: Final answer
    x = 6,653.19

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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.