Home / 12,956.20-19,418.30-8,796.20

Finding the Fourth Proportional to 12,956.20, 19,418.30 and 8,796.20

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Solution

The fourth proportional to 12,956.20, 19,418.30 and 8,796.20 is: 13,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956.20 : 19,418.30 = 8,796.20 : x
  2. Step 2: Convert to fraction form
    12,956.20/19,418.30 = 8,796.20/x
  3. Step 3: Cross multiply
    12,956.20x = 19,418.30 × 8,796.20
  4. Step 4: Simplify right side
    12,956.20x = 170,807,250.46
  5. Step 5: Solve for x
    x = 170,807,250.46/12,956.20
  6. Step 6: Final answer
    x = 13,183.44

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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.