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Finding the Fourth Proportional to 7,996.78, 10,955.66 and 7,697.56

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Solution

The fourth proportional to 7,996.78, 10,955.66 and 7,697.56 is: 10,545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,996.78 : 10,955.66 = 7,697.56 : x
  2. Step 2: Convert to fraction form
    7,996.78/10,955.66 = 7,697.56/x
  3. Step 3: Cross multiply
    7,996.78x = 10,955.66 × 7,697.56
  4. Step 4: Simplify right side
    7,996.78x = 84,331,850.19
  5. Step 5: Solve for x
    x = 84,331,850.19/7,996.78
  6. Step 6: Final answer
    x = 10,545.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.