Home / 18,671.16-25,778.86-13,072.44

Finding the Fourth Proportional to 18,671.16, 25,778.86 and 13,072.44

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Solution

The fourth proportional to 18,671.16, 25,778.86 and 13,072.44 is: 18,048.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.16 : 25,778.86 = 13,072.44 : x
  2. Step 2: Convert to fraction form
    18,671.16/25,778.86 = 13,072.44/x
  3. Step 3: Cross multiply
    18,671.16x = 25,778.86 × 13,072.44
  4. Step 4: Simplify right side
    18,671.16x = 336,992,600.62
  5. Step 5: Solve for x
    x = 336,992,600.62/18,671.16
  6. Step 6: Final answer
    x = 18,048.83

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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.