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Finding the Fourth Proportional to 7,904.99, 11,769.38 and 7,794.61

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Solution

The fourth proportional to 7,904.99, 11,769.38 and 7,794.61 is: 11,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,904.99 : 11,769.38 = 7,794.61 : x
  2. Step 2: Convert to fraction form
    7,904.99/11,769.38 = 7,794.61/x
  3. Step 3: Cross multiply
    7,904.99x = 11,769.38 × 7,794.61
  4. Step 4: Simplify right side
    7,904.99x = 91,737,797.92
  5. Step 5: Solve for x
    x = 91,737,797.92/7,904.99
  6. Step 6: Final answer
    x = 11,605.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.