Home / 12,226.70-18,340.05-8,540.30

Finding the Fourth Proportional to 12,226.70, 18,340.05 and 8,540.30

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Solution

The fourth proportional to 12,226.70, 18,340.05 and 8,540.30 is: 12,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.70 : 18,340.05 = 8,540.30 : x
  2. Step 2: Convert to fraction form
    12,226.70/18,340.05 = 8,540.30/x
  3. Step 3: Cross multiply
    12,226.70x = 18,340.05 × 8,540.30
  4. Step 4: Simplify right side
    12,226.70x = 156,629,529.02
  5. Step 5: Solve for x
    x = 156,629,529.02/12,226.70
  6. Step 6: Final answer
    x = 12,810.45

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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.