Home / 12,608.20-18,874.86-9,335.80

Finding the Fourth Proportional to 12,608.20, 18,874.86 and 9,335.80

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Solution

The fourth proportional to 12,608.20, 18,874.86 and 9,335.80 is: 13,975.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608.20 : 18,874.86 = 9,335.80 : x
  2. Step 2: Convert to fraction form
    12,608.20/18,874.86 = 9,335.80/x
  3. Step 3: Cross multiply
    12,608.20x = 18,874.86 × 9,335.80
  4. Step 4: Simplify right side
    12,608.20x = 176,211,917.99
  5. Step 5: Solve for x
    x = 176,211,917.99/12,608.20
  6. Step 6: Final answer
    x = 13,975.98

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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.