Home / 10,441.78-15,634.42-7,647.28

Finding the Fourth Proportional to 10,441.78, 15,634.42 and 7,647.28

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Solution

The fourth proportional to 10,441.78, 15,634.42 and 7,647.28 is: 11,450.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,441.78 : 15,634.42 = 7,647.28 : x
  2. Step 2: Convert to fraction form
    10,441.78/15,634.42 = 7,647.28/x
  3. Step 3: Cross multiply
    10,441.78x = 15,634.42 × 7,647.28
  4. Step 4: Simplify right side
    10,441.78x = 119,560,729.17
  5. Step 5: Solve for x
    x = 119,560,729.17/10,441.78
  6. Step 6: Final answer
    x = 11,450.23

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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.