Home / 10,416.87-15,622.07-3,489.75

Finding the Fourth Proportional to 10,416.87, 15,622.07 and 3,489.75

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Solution

The fourth proportional to 10,416.87, 15,622.07 and 3,489.75 is: 5,233.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,416.87 : 15,622.07 = 3,489.75 : x
  2. Step 2: Convert to fraction form
    10,416.87/15,622.07 = 3,489.75/x
  3. Step 3: Cross multiply
    10,416.87x = 15,622.07 × 3,489.75
  4. Step 4: Simplify right side
    10,416.87x = 54,517,101.33
  5. Step 5: Solve for x
    x = 54,517,101.33/10,416.87
  6. Step 6: Final answer
    x = 5,233.54

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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.