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Finding the Fourth Proportional to 12,893.38, 17,792.92 and 7,519

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Solution

The fourth proportional to 12,893.38, 17,792.92 and 7,519 is: 10,376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,893.38 : 17,792.92 = 7,519 : x
  2. Step 2: Convert to fraction form
    12,893.38/17,792.92 = 7,519/x
  3. Step 3: Cross multiply
    12,893.38x = 17,792.92 × 7,519
  4. Step 4: Simplify right side
    12,893.38x = 133,784,965.48
  5. Step 5: Solve for x
    x = 133,784,965.48/12,893.38
  6. Step 6: Final answer
    x = 10,376.25

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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.