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Finding the Fourth Proportional to 9,836.70, 14,755.77 and 3,991.74

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Solution

The fourth proportional to 9,836.70, 14,755.77 and 3,991.74 is: 5,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,836.70 : 14,755.77 = 3,991.74 : x
  2. Step 2: Convert to fraction form
    9,836.70/14,755.77 = 3,991.74/x
  3. Step 3: Cross multiply
    9,836.70x = 14,755.77 × 3,991.74
  4. Step 4: Simplify right side
    9,836.70x = 58,901,197.34
  5. Step 5: Solve for x
    x = 58,901,197.34/9,836.70
  6. Step 6: Final answer
    x = 5,987.90

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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.