Home / 6,351.12-8,765.96-3,996.45

Finding the Fourth Proportional to 6,351.12, 8,765.96 and 3,996.45

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Solution

The fourth proportional to 6,351.12, 8,765.96 and 3,996.45 is: 5,515.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,351.12 : 8,765.96 = 3,996.45 : x
  2. Step 2: Convert to fraction form
    6,351.12/8,765.96 = 3,996.45/x
  3. Step 3: Cross multiply
    6,351.12x = 8,765.96 × 3,996.45
  4. Step 4: Simplify right side
    6,351.12x = 35,032,700.86
  5. Step 5: Solve for x
    x = 35,032,700.86/6,351.12
  6. Step 6: Final answer
    x = 5,515.99

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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.