Home / 7,627.70-11,428.46-6,857.33

Finding the Fourth Proportional to 7,627.70, 11,428.46 and 6,857.33

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Solution

The fourth proportional to 7,627.70, 11,428.46 and 6,857.33 is: 10,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,627.70 : 11,428.46 = 6,857.33 : x
  2. Step 2: Convert to fraction form
    7,627.70/11,428.46 = 6,857.33/x
  3. Step 3: Cross multiply
    7,627.70x = 11,428.46 × 6,857.33
  4. Step 4: Simplify right side
    7,627.70x = 78,368,655.90
  5. Step 5: Solve for x
    x = 78,368,655.90/7,627.70
  6. Step 6: Final answer
    x = 10,274.22

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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.