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Finding the Fourth Proportional to 8,505.64, 11,736.89 and 4,728.19

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Solution

The fourth proportional to 8,505.64, 11,736.89 and 4,728.19 is: 6,524.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.64 : 11,736.89 = 4,728.19 : x
  2. Step 2: Convert to fraction form
    8,505.64/11,736.89 = 4,728.19/x
  3. Step 3: Cross multiply
    8,505.64x = 11,736.89 × 4,728.19
  4. Step 4: Simplify right side
    8,505.64x = 55,494,243.31
  5. Step 5: Solve for x
    x = 55,494,243.31/8,505.64
  6. Step 6: Final answer
    x = 6,524.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.