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Finding the Fourth Proportional to 18,479.16, 27,653.10 and 13,536.54

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Solution

The fourth proportional to 18,479.16, 27,653.10 and 13,536.54 is: 20,256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.16 : 27,653.10 = 13,536.54 : x
  2. Step 2: Convert to fraction form
    18,479.16/27,653.10 = 13,536.54/x
  3. Step 3: Cross multiply
    18,479.16x = 27,653.10 × 13,536.54
  4. Step 4: Simplify right side
    18,479.16x = 374,327,321.29
  5. Step 5: Solve for x
    x = 374,327,321.29/18,479.16
  6. Step 6: Final answer
    x = 20,256.73

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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.