Home / 13,633.68-20,339.66-12,360.44

Finding the Fourth Proportional to 13,633.68, 20,339.66 and 12,360.44

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Solution

The fourth proportional to 13,633.68, 20,339.66 and 12,360.44 is: 18,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.68 : 20,339.66 = 12,360.44 : x
  2. Step 2: Convert to fraction form
    13,633.68/20,339.66 = 12,360.44/x
  3. Step 3: Cross multiply
    13,633.68x = 20,339.66 × 12,360.44
  4. Step 4: Simplify right side
    13,633.68x = 251,407,147.05
  5. Step 5: Solve for x
    x = 251,407,147.05/13,633.68
  6. Step 6: Final answer
    x = 18,440.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.