Home / 12,551.20-18,825.78-4,231.03

Finding the Fourth Proportional to 12,551.20, 18,825.78 and 4,231.03

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Solution

The fourth proportional to 12,551.20, 18,825.78 and 4,231.03 is: 6,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.20 : 18,825.78 = 4,231.03 : x
  2. Step 2: Convert to fraction form
    12,551.20/18,825.78 = 4,231.03/x
  3. Step 3: Cross multiply
    12,551.20x = 18,825.78 × 4,231.03
  4. Step 4: Simplify right side
    12,551.20x = 79,652,439.95
  5. Step 5: Solve for x
    x = 79,652,439.95/12,551.20
  6. Step 6: Final answer
    x = 6,346.20

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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.