Home / 8,171.63-11,278.22-4,636.88

Finding the Fourth Proportional to 8,171.63, 11,278.22 and 4,636.88

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Solution

The fourth proportional to 8,171.63, 11,278.22 and 4,636.88 is: 6,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.63 : 11,278.22 = 4,636.88 : x
  2. Step 2: Convert to fraction form
    8,171.63/11,278.22 = 4,636.88/x
  3. Step 3: Cross multiply
    8,171.63x = 11,278.22 × 4,636.88
  4. Step 4: Simplify right side
    8,171.63x = 52,295,673.18
  5. Step 5: Solve for x
    x = 52,295,673.18/8,171.63
  6. Step 6: Final answer
    x = 6,399.67

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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.