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Finding the Fourth Proportional to 18,494.64, 27,738.48 and 6,646.56

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Solution

The fourth proportional to 18,494.64, 27,738.48 and 6,646.56 is: 9,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494.64 : 27,738.48 = 6,646.56 : x
  2. Step 2: Convert to fraction form
    18,494.64/27,738.48 = 6,646.56/x
  3. Step 3: Cross multiply
    18,494.64x = 27,738.48 × 6,646.56
  4. Step 4: Simplify right side
    18,494.64x = 184,365,471.63
  5. Step 5: Solve for x
    x = 184,365,471.63/18,494.64
  6. Step 6: Final answer
    x = 9,968.59

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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.