Home / 12,996.62-17,935.12-7,331.38

Finding the Fourth Proportional to 12,996.62, 17,935.12 and 7,331.38

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Solution

The fourth proportional to 12,996.62, 17,935.12 and 7,331.38 is: 10,117.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.62 : 17,935.12 = 7,331.38 : x
  2. Step 2: Convert to fraction form
    12,996.62/17,935.12 = 7,331.38/x
  3. Step 3: Cross multiply
    12,996.62x = 17,935.12 × 7,331.38
  4. Step 4: Simplify right side
    12,996.62x = 131,489,143.41
  5. Step 5: Solve for x
    x = 131,489,143.41/12,996.62
  6. Step 6: Final answer
    x = 10,117.18

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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.