Home / 10,917.14-16,376.32-3,125.75

Finding the Fourth Proportional to 10,917.14, 16,376.32 and 3,125.75

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Solution

The fourth proportional to 10,917.14, 16,376.32 and 3,125.75 is: 4,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.14 : 16,376.32 = 3,125.75 : x
  2. Step 2: Convert to fraction form
    10,917.14/16,376.32 = 3,125.75/x
  3. Step 3: Cross multiply
    10,917.14x = 16,376.32 × 3,125.75
  4. Step 4: Simplify right side
    10,917.14x = 51,188,282.24
  5. Step 5: Solve for x
    x = 51,188,282.24/10,917.14
  6. Step 6: Final answer
    x = 4,688.80

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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.