Home / 13,270.35-18,314.86-12,149.27

Finding the Fourth Proportional to 13,270.35, 18,314.86 and 12,149.27

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Solution

The fourth proportional to 13,270.35, 18,314.86 and 12,149.27 is: 16,767.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.35 : 18,314.86 = 12,149.27 : x
  2. Step 2: Convert to fraction form
    13,270.35/18,314.86 = 12,149.27/x
  3. Step 3: Cross multiply
    13,270.35x = 18,314.86 × 12,149.27
  4. Step 4: Simplify right side
    13,270.35x = 222,512,251.69
  5. Step 5: Solve for x
    x = 222,512,251.69/13,270.35
  6. Step 6: Final answer
    x = 16,767.63

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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.