Home / 10,620.68-15,928.62-2,829.32

Finding the Fourth Proportional to 10,620.68, 15,928.62 and 2,829.32

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Solution

The fourth proportional to 10,620.68, 15,928.62 and 2,829.32 is: 4,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.68 : 15,928.62 = 2,829.32 : x
  2. Step 2: Convert to fraction form
    10,620.68/15,928.62 = 2,829.32/x
  3. Step 3: Cross multiply
    10,620.68x = 15,928.62 × 2,829.32
  4. Step 4: Simplify right side
    10,620.68x = 45,067,163.14
  5. Step 5: Solve for x
    x = 45,067,163.14/10,620.68
  6. Step 6: Final answer
    x = 4,243.34

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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.