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Finding the Fourth Proportional to 9,236.43, 12,736.54 and 8,487.38

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Solution

The fourth proportional to 9,236.43, 12,736.54 and 8,487.38 is: 11,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,236.43 : 12,736.54 = 8,487.38 : x
  2. Step 2: Convert to fraction form
    9,236.43/12,736.54 = 8,487.38/x
  3. Step 3: Cross multiply
    9,236.43x = 12,736.54 × 8,487.38
  4. Step 4: Simplify right side
    9,236.43x = 108,099,897.32
  5. Step 5: Solve for x
    x = 108,099,897.32/9,236.43
  6. Step 6: Final answer
    x = 11,703.64

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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.