Home / 10,902.87-16,359.17-3,975.75

Finding the Fourth Proportional to 10,902.87, 16,359.17 and 3,975.75

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Solution

The fourth proportional to 10,902.87, 16,359.17 and 3,975.75 is: 5,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.87 : 16,359.17 = 3,975.75 : x
  2. Step 2: Convert to fraction form
    10,902.87/16,359.17 = 3,975.75/x
  3. Step 3: Cross multiply
    10,902.87x = 16,359.17 × 3,975.75
  4. Step 4: Simplify right side
    10,902.87x = 65,039,950.25
  5. Step 5: Solve for x
    x = 65,039,950.25/10,902.87
  6. Step 6: Final answer
    x = 5,965.40

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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.