Home / 18,105.75-24,976.77-13,381.83

Finding the Fourth Proportional to 18,105.75, 24,976.77 and 13,381.83

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Solution

The fourth proportional to 18,105.75, 24,976.77 and 13,381.83 is: 18,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.75 : 24,976.77 = 13,381.83 : x
  2. Step 2: Convert to fraction form
    18,105.75/24,976.77 = 13,381.83/x
  3. Step 3: Cross multiply
    18,105.75x = 24,976.77 × 13,381.83
  4. Step 4: Simplify right side
    18,105.75x = 334,234,890.09
  5. Step 5: Solve for x
    x = 334,234,890.09/18,105.75
  6. Step 6: Final answer
    x = 18,460.15

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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.