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Finding the Fourth Proportional to 18,256.68, 27,384.96 and 4,405.68

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Solution

The fourth proportional to 18,256.68, 27,384.96 and 4,405.68 is: 6,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256.68 : 27,384.96 = 4,405.68 : x
  2. Step 2: Convert to fraction form
    18,256.68/27,384.96 = 4,405.68/x
  3. Step 3: Cross multiply
    18,256.68x = 27,384.96 × 4,405.68
  4. Step 4: Simplify right side
    18,256.68x = 120,649,370.57
  5. Step 5: Solve for x
    x = 120,649,370.57/18,256.68
  6. Step 6: Final answer
    x = 6,608.51

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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.