Home / 8,147.74-11,248.94-6,255.72

Finding the Fourth Proportional to 8,147.74, 11,248.94 and 6,255.72

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Solution

The fourth proportional to 8,147.74, 11,248.94 and 6,255.72 is: 8,636.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.74 : 11,248.94 = 6,255.72 : x
  2. Step 2: Convert to fraction form
    8,147.74/11,248.94 = 6,255.72/x
  3. Step 3: Cross multiply
    8,147.74x = 11,248.94 × 6,255.72
  4. Step 4: Simplify right side
    8,147.74x = 70,370,218.94
  5. Step 5: Solve for x
    x = 70,370,218.94/8,147.74
  6. Step 6: Final answer
    x = 8,636.78

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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.