Home / 12,269.21-16,932.18-7,236.38

Finding the Fourth Proportional to 12,269.21, 16,932.18 and 7,236.38

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Solution

The fourth proportional to 12,269.21, 16,932.18 and 7,236.38 is: 9,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.21 : 16,932.18 = 7,236.38 : x
  2. Step 2: Convert to fraction form
    12,269.21/16,932.18 = 7,236.38/x
  3. Step 3: Cross multiply
    12,269.21x = 16,932.18 × 7,236.38
  4. Step 4: Simplify right side
    12,269.21x = 122,527,604.05
  5. Step 5: Solve for x
    x = 122,527,604.05/12,269.21
  6. Step 6: Final answer
    x = 9,986.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.