Home / 12,942.38-17,836.80-9,399.44

Finding the Fourth Proportional to 12,942.38, 17,836.80 and 9,399.44

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Solution

The fourth proportional to 12,942.38, 17,836.80 and 9,399.44 is: 12,954.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.38 : 17,836.80 = 9,399.44 : x
  2. Step 2: Convert to fraction form
    12,942.38/17,836.80 = 9,399.44/x
  3. Step 3: Cross multiply
    12,942.38x = 17,836.80 × 9,399.44
  4. Step 4: Simplify right side
    12,942.38x = 167,655,931.39
  5. Step 5: Solve for x
    x = 167,655,931.39/12,942.38
  6. Step 6: Final answer
    x = 12,954.03

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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.