Home / 15,481.41-21,364.68-8,767.05

Finding the Fourth Proportional to 15,481.41, 21,364.68 and 8,767.05

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Solution

The fourth proportional to 15,481.41, 21,364.68 and 8,767.05 is: 12,098.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.41 : 21,364.68 = 8,767.05 : x
  2. Step 2: Convert to fraction form
    15,481.41/21,364.68 = 8,767.05/x
  3. Step 3: Cross multiply
    15,481.41x = 21,364.68 × 8,767.05
  4. Step 4: Simplify right side
    15,481.41x = 187,305,217.79
  5. Step 5: Solve for x
    x = 187,305,217.79/15,481.41
  6. Step 6: Final answer
    x = 12,098.72

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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.