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Finding the Fourth Proportional to 7,894.77, 11,839.78 and 6,504.66

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Solution

The fourth proportional to 7,894.77, 11,839.78 and 6,504.66 is: 9,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.77 : 11,839.78 = 6,504.66 : x
  2. Step 2: Convert to fraction form
    7,894.77/11,839.78 = 6,504.66/x
  3. Step 3: Cross multiply
    7,894.77x = 11,839.78 × 6,504.66
  4. Step 4: Simplify right side
    7,894.77x = 77,013,743.37
  5. Step 5: Solve for x
    x = 77,013,743.37/7,894.77
  6. Step 6: Final answer
    x = 9,755.03

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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.