Home / 18,630.50-27,953.85-9,279.86

Finding the Fourth Proportional to 18,630.50, 27,953.85 and 9,279.86

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Solution

The fourth proportional to 18,630.50, 27,953.85 and 9,279.86 is: 13,923.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.50 : 27,953.85 = 9,279.86 : x
  2. Step 2: Convert to fraction form
    18,630.50/27,953.85 = 9,279.86/x
  3. Step 3: Cross multiply
    18,630.50x = 27,953.85 × 9,279.86
  4. Step 4: Simplify right side
    18,630.50x = 259,407,814.46
  5. Step 5: Solve for x
    x = 259,407,814.46/18,630.50
  6. Step 6: Final answer
    x = 13,923.82

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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.