Home / 8,231.20-12,346.88-3,548.24

Finding the Fourth Proportional to 8,231.20, 12,346.88 and 3,548.24

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Solution

The fourth proportional to 8,231.20, 12,346.88 and 3,548.24 is: 5,322.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.20 : 12,346.88 = 3,548.24 : x
  2. Step 2: Convert to fraction form
    8,231.20/12,346.88 = 3,548.24/x
  3. Step 3: Cross multiply
    8,231.20x = 12,346.88 × 3,548.24
  4. Step 4: Simplify right side
    8,231.20x = 43,809,693.49
  5. Step 5: Solve for x
    x = 43,809,693.49/8,231.20
  6. Step 6: Final answer
    x = 5,322.39

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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.