Home / 8,147.88-11,247.93-6,671.70

Finding the Fourth Proportional to 8,147.88, 11,247.93 and 6,671.70

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Solution

The fourth proportional to 8,147.88, 11,247.93 and 6,671.70 is: 9,210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.88 : 11,247.93 = 6,671.70 : x
  2. Step 2: Convert to fraction form
    8,147.88/11,247.93 = 6,671.70/x
  3. Step 3: Cross multiply
    8,147.88x = 11,247.93 × 6,671.70
  4. Step 4: Simplify right side
    8,147.88x = 75,042,814.58
  5. Step 5: Solve for x
    x = 75,042,814.58/8,147.88
  6. Step 6: Final answer
    x = 9,210.10

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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.