Home / 12,268.46-18,402.60-8,107.49

Finding the Fourth Proportional to 12,268.46, 18,402.60 and 8,107.49

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Solution

The fourth proportional to 12,268.46, 18,402.60 and 8,107.49 is: 12,161.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.46 : 18,402.60 = 8,107.49 : x
  2. Step 2: Convert to fraction form
    12,268.46/18,402.60 = 8,107.49/x
  3. Step 3: Cross multiply
    12,268.46x = 18,402.60 × 8,107.49
  4. Step 4: Simplify right side
    12,268.46x = 149,198,803.46
  5. Step 5: Solve for x
    x = 149,198,803.46/12,268.46
  6. Step 6: Final answer
    x = 12,161.17

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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.