Home / 10,914.87-16,373.93-3,987.75

Finding the Fourth Proportional to 10,914.87, 16,373.93 and 3,987.75

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Solution

The fourth proportional to 10,914.87, 16,373.93 and 3,987.75 is: 5,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.87 : 16,373.93 = 3,987.75 : x
  2. Step 2: Convert to fraction form
    10,914.87/16,373.93 = 3,987.75/x
  3. Step 3: Cross multiply
    10,914.87x = 16,373.93 × 3,987.75
  4. Step 4: Simplify right side
    10,914.87x = 65,295,119.42
  5. Step 5: Solve for x
    x = 65,295,119.42/10,914.87
  6. Step 6: Final answer
    x = 5,982.22

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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.