Home / 10,494.28-15,740.90-3,919.96

Finding the Fourth Proportional to 10,494.28, 15,740.90 and 3,919.96

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Solution

The fourth proportional to 10,494.28, 15,740.90 and 3,919.96 is: 5,879.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,494.28 : 15,740.90 = 3,919.96 : x
  2. Step 2: Convert to fraction form
    10,494.28/15,740.90 = 3,919.96/x
  3. Step 3: Cross multiply
    10,494.28x = 15,740.90 × 3,919.96
  4. Step 4: Simplify right side
    10,494.28x = 61,703,698.36
  5. Step 5: Solve for x
    x = 61,703,698.36/10,494.28
  6. Step 6: Final answer
    x = 5,879.75

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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.