Home / 10,149.07-15,257.91-8,198.80

Finding the Fourth Proportional to 10,149.07, 15,257.91 and 8,198.80

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Solution

The fourth proportional to 10,149.07, 15,257.91 and 8,198.80 is: 12,325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,149.07 : 15,257.91 = 8,198.80 : x
  2. Step 2: Convert to fraction form
    10,149.07/15,257.91 = 8,198.80/x
  3. Step 3: Cross multiply
    10,149.07x = 15,257.91 × 8,198.80
  4. Step 4: Simplify right side
    10,149.07x = 125,096,552.51
  5. Step 5: Solve for x
    x = 125,096,552.51/10,149.07
  6. Step 6: Final answer
    x = 12,325.91

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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.