Home / 7,938.68-11,914.09-5,716.44

Finding the Fourth Proportional to 7,938.68, 11,914.09 and 5,716.44

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Solution

The fourth proportional to 7,938.68, 11,914.09 and 5,716.44 is: 8,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.68 : 11,914.09 = 5,716.44 : x
  2. Step 2: Convert to fraction form
    7,938.68/11,914.09 = 5,716.44/x
  3. Step 3: Cross multiply
    7,938.68x = 11,914.09 × 5,716.44
  4. Step 4: Simplify right side
    7,938.68x = 68,106,166.35
  5. Step 5: Solve for x
    x = 68,106,166.35/7,938.68
  6. Step 6: Final answer
    x = 8,579.03

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1.5x scale

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.