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Finding the Fourth Proportional to 7,808.43, 11,697.51 and 6,935.79

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Solution

The fourth proportional to 7,808.43, 11,697.51 and 6,935.79 is: 10,390.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,808.43 : 11,697.51 = 6,935.79 : x
  2. Step 2: Convert to fraction form
    7,808.43/11,697.51 = 6,935.79/x
  3. Step 3: Cross multiply
    7,808.43x = 11,697.51 × 6,935.79
  4. Step 4: Simplify right side
    7,808.43x = 81,131,472.88
  5. Step 5: Solve for x
    x = 81,131,472.88/7,808.43
  6. Step 6: Final answer
    x = 10,390.24

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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.