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Finding the Fourth Proportional to 12,326.94, 18,466.97 and 7,318.71

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Solution

The fourth proportional to 12,326.94, 18,466.97 and 7,318.71 is: 10,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.94 : 18,466.97 = 7,318.71 : x
  2. Step 2: Convert to fraction form
    12,326.94/18,466.97 = 7,318.71/x
  3. Step 3: Cross multiply
    12,326.94x = 18,466.97 × 7,318.71
  4. Step 4: Simplify right side
    12,326.94x = 135,154,361.42
  5. Step 5: Solve for x
    x = 135,154,361.42/12,326.94
  6. Step 6: Final answer
    x = 10,964.15

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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.