Home / 12,286.08-18,425.34-3,518.64

Finding the Fourth Proportional to 12,286.08, 18,425.34 and 3,518.64

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Solution

The fourth proportional to 12,286.08, 18,425.34 and 3,518.64 is: 5,276.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.08 : 18,425.34 = 3,518.64 : x
  2. Step 2: Convert to fraction form
    12,286.08/18,425.34 = 3,518.64/x
  3. Step 3: Cross multiply
    12,286.08x = 18,425.34 × 3,518.64
  4. Step 4: Simplify right side
    12,286.08x = 64,832,138.34
  5. Step 5: Solve for x
    x = 64,832,138.34/12,286.08
  6. Step 6: Final answer
    x = 5,276.88

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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.