Home / 10,109.32-15,163.98-3,949

Finding the Fourth Proportional to 10,109.32, 15,163.98 and 3,949

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Solution

The fourth proportional to 10,109.32, 15,163.98 and 3,949 is: 5,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.32 : 15,163.98 = 3,949 : x
  2. Step 2: Convert to fraction form
    10,109.32/15,163.98 = 3,949/x
  3. Step 3: Cross multiply
    10,109.32x = 15,163.98 × 3,949
  4. Step 4: Simplify right side
    10,109.32x = 59,882,557.02
  5. Step 5: Solve for x
    x = 59,882,557.02/10,109.32
  6. Step 6: Final answer
    x = 5,923.50

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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.